介绍:
(4474期)人们是不是越来越忙碌了Do people become much busier than before
多亏了现代科技 thanks to modern technology
过去 before/used to be
过去在办公室工作的人可以在家办公 Those employees who used to sit in the office can work at home today
周末加班 work overtime on weekends
补课 the classes are not arranged at school, but in some special organizations or training schools
必须的 undoubtedly/for sure/required
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