"I'll be in bed by 10pm on weeknights" leaves no room for doubt about what you need to do, and whether or not you've actually done it.

“我这周每天晚上10点睡觉”，无论你实际上是否按时睡觉了，这个目标都会让你没有犹豫的时间。

youdao

This association (which need not be invariable) casts doubt on the optimistic assumption that the positive growth rate of a population is evidence that it has yet to reach its optimum.

这种连系（无须是一成不变的）令人对所谓正数增长率表示人口还没有达致最佳点的乐观假定感到怀疑。

youdao

They do not need a spoiled 38-year-old backup center used to - and no doubt still craving - the spotlight.

我们已经不需要一位38岁高龄的中锋来焕发他的第二春。

youdao

But there is no doubt, no question, that they do not address the urgent need for near-term economic growth and job creation.

WHITEHOUSE: The White House

If the schools fail to do this, then they need to be fixed, not stripped of a portion of their (no doubt best) students.

ECONOMIST: Letters | The

But, Chip, there's no doubt that we're not going to get all the way that we need to unless or until we get two parties working together as the American people envision their government working.

WHITEHOUSE: Press Briefing