must
第三人称
must
1
必须, 得
used to show that something is very important and needs to happen
- Students must submit their applications before the deadline.
学生必须在截止日期前提交他们的申请。
- Employees must attend the mandatory training session next week.
员工必须参加下周的强制性培训课程。
- Drivers must obey traffic laws to ensure road safety.
司机必须遵守交通法规以确保道路安全。
- Guests must follow the established dress code for the formal event.
客人必须遵守为正式活动制定的着装要求。
- Participants must complete the survey to provide valuable feedback.
参与者必须完成调查以提供有价值的反馈。
2
必须, 应该
used to make a recommendations regarding someone or something
- You must try their homemade ice cream—it's incredible.
- He must read this book; it suits his interests perfectly.
- You must visit Kyoto if you ever go to Japan.
- You must meet my sister—she's wonderful.
- You must check out the view from the top floor.
3
必须, 一定
used to express a logical conclusion
- You must be tired after such a long trip.
- That must be the delivery driver at the door.
- He must know about the meeting by now.
- This must be the place we were looking for.
- They must have forgotten to call.