animated symbol of question mark. looped video. vector illustration isolated on a green screen background. stock video - 問 個影片檔及 b 捲影像00:09
1973 montage high school math class, teacher asks for a volunteer, no one raises hand, teacher selects student / united states - 問 個影片檔及 b 捲影像00:14學生
1840 after introductions, abraham lincoln dances with a laughing mary todd - 問 個影片檔及 b 捲影像01:33調情, 跳舞
1964 a martian is concerned because something is happening to the children of mars - 問 個影片檔及 b 捲影像00:04外星人
close up people chat with ai bot on smartphone using a voice command to manage daily schedule mobile app - 問 個影片檔及 b 捲影像00:19
close up people chat with ai bot on smartphone using a voice command to manage daily schedule mobile app - 問 個影片檔及 b 捲影像00:16
financial advisor, paperwork and hands of person sign for pension plan, savings and insurance. home, signature and client with documents, application form and info for finance, budget and mortgage - 問 個影片檔及 b 捲影像00:05
copy space- question mark animated looping spin background blue 4k stock video 4k stock video - 問 個影片檔及 b 捲影像00:12
female hospital administrator discusses hospital business during staff meeting - 問 個影片檔及 b 捲影像00:14女商人
call center, night and business woman in office for contact, communication and virtual help. corporate, working late and worker with headset on computer for customer service, crm support and talking - 問 個影片檔及 b 捲影像00:18
customer service professionals working together at computer in call center setting. - 問 個影片檔及 b 捲影像00:12印度人
businessman, back and speech for presentation, graphs monitor or training data in meeting. talking, financial coaching and leader teaching audience on charts stats on screen in workshop for finance - 問 個影片檔及 b 捲影像00:27會展中心
man, crowd and raised hand at conference event for question, feedback and attention. male person, inquiry and audience with vote, answer idea and agreement of opinion on corporate training at seminar - 問 個影片檔及 b 捲影像00:27
business, man and raised hand at conference for question, feedback and attention of speaker. person, inquiry and audience with vote, answer and opinion with solution for corporate training at seminar - 問 個影片檔及 b 捲影像00:18
thinking, idea and black man in studio with brainstorming, doubt or unsure facial expression. green background. - 問 個影片檔及 b 捲影像00:23
doctor asking questions to senior patient .doctor checking patient with a stethoscope while dictating something to the nurse. - 問 個影片檔及 b 捲影像00:12老年男人
thinking, idea and black man in studio with brainstorming, doubt or unsure facial expression. planning, confused and young african male model with problem solving or solution faced by green background. - 問 個影片檔及 b 捲影像00:18
a young female real estate salesperson is signing a house purchase contract with an elderly retired couple. - 問 個影片檔及 b 捲影像00:32
a young female real estate salesperson is signing a house purchase contract with an elderly retired couple. - 問 個影片檔及 b 捲影像00:28
copy space-simple cloud shaped speech balloon on chroma key background - 4k stok video - 問 個影片檔及 b 捲影像00:07
thai customer shopping fresh tamarind in local small market, farmer market in local tradition small business. - 問 個影片檔及 b 捲影像00:29
business, employees and brainstorming in boardroom for discussion, meeting and strategy as real estate agent. people, office and conversation with report or feedback for property development project - 問 個影片檔及 b 捲影像00:08辦公室
glass wall, team discussion and business people in presentation, planning or problem solving in office. project manager, sticky notes and group with paperwork for collaboration, training or teaching - 問 個影片檔及 b 捲影像00:06
woman uses a smartphone and talks or talks to find tourist attractions in the city - 問 個影片檔及 b 捲影像00:12
mother working at home on laptop and using artificial intelligent smart home speaker with her daughter in living room at home - 問 個影片檔及 b 捲影像00:12
mastering the mechanisms: adult engineering students engage with engines in educational setting. - 問 個影片檔及 b 捲影像00:08工人階級
old man, wife and nurse or talking in home or medical advice service, communicate or results. partnership, healthcare worker and conversation in house as diagnosis consultation, planning or decision - 問 個影片檔及 b 捲影像00:07退休
back pain, physical therapy or nurse with senior patient, injury or healthcare support. physiotherapy, test or mature woman with chiropractor, muscle rehabilitation or physiotherapist in hospital - 問 個影片檔及 b 捲影像00:17
boris johnson has admitted his government “underestimated” the threat posed by the coronavirus in the early days of the pandemicm and did not deny... - 問 個影片檔及 b 捲影像03:46
business people, coaching and teamwork on computer for collaboration, planning or ideas in strategy together at office. group of employees in team discussion, project plan or training at workplace - 問 個影片檔及 b 捲影像00:12辦公室
arms crossed, doctor and senior with face of woman in hospital for consulting, medical and advice. surgery, medicine and healthcare with portrait of person in clinic for professional and insurance - 問 個影片檔及 b 捲影像00:09微笑
paperwork, laptop and black couple conversation on home accounting, mortgage insurance bills or online bank balance. budget, savings report and marriage people consulting on financial account audit - 問 個影片檔及 b 捲影像00:14
teamwork, lawyer and leader woman at meeting, conversation or speech in office. collaboration, group and attorney at table in leadership, planning strategy and brainstorming legal business together - 問 個影片檔及 b 捲影像00:17辦公室
new mom talks with female pediatrician during her child's well check appointment - 問 個影片檔及 b 捲影像00:18父母
eyes, face and man moving eyebrows looking serious, confused and focused isolated against a studio yellow background. portrait, person and zoom of male wondering and question expression - 問 個影片檔及 b 捲影像00:11
