One of the more difficult things many students must adjust to in the states is the notion that time must be saved whenever possible and used wisely every day.

对于许多留美学生来说，比较难的是他们必须要调整并适应美国的时间观--尽可能地节省时间，好好利用每一天。

youdao

To ensure consistency (and finality) in decisions and direction, as well as rapid and clear decision-making, one person must ultimately be in charge of the day-to-day effort.

这个人 在决策和指导中确保连续性（和结果）以及快速清晰的决策制定。 这个人必须最终负责每天的日常工作。

youdao

Every mother who returns to work full-time must be allowed ‘breastfeeding breaks’ of up to two hours each day, according to the latest rules from Brussels.

根据位于布鲁塞尔的欧盟订立的新规定，每位休完产假回来全职工作的母亲每天都必须有两小时的哺乳假。

youdao

It is easy to tell that it must be a cold day because several of the men are sitting near a wood stove for warmth.

VOA: special.2010.03.17

Baby care experts had believed that babies must be fed at the same times every day or they would grow up to be demanding children.

VOA: special.2009.03.15

must one day be returned to China. Smith says the program is very successful.

VOA: standard.2010.02.02

Each of the centres will hold around 750 refugees who will be able to leave during the day but must return at night.

BBC: Residents to fight asylum plans

To be registered to vote in the by-election people must be 16 or over by election day, resident at the address stated on the registration form and resident in the Isle of Man for at least one year.

BBC: A man walks into a polling station

Individual preparedness, and the realisation that large scale efforts take time to execute, must be the order of the day.

ECONOMIST: Catholic choice