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1·Some show up ready, but many do not at this critical time when young brains are developing rapidly.

有些学校已经准备好了，但仍有许多学校在孩子大脑快速发育的这个关键时刻，还没有准备好。

2·It's a very important explanation and much debated, that at a critical time in the battle, one technique would be that one side would give one great big shove.

它是一种很重要的解释，而且饱受争议，那就是在战局一个重要的时刻，有一项技术就是一方给对方致命一推。

3·We are meeting at a critical time.

我们是在关键的时刻召开会议。

4·His intervention comes at a critical time.

他的干预恰好处于关键时刻。

5·And this is a critical time for animal study.

而目前的动物研究也处于一个关键时刻。

6·We are at a critical time in out history.

我们正处在我们历史的关键时期。

7·We are at a critical time in our history.

我们处在历史的紧要关头。

8·That was a critical time in the nation's history.

那是涉及国家命运的一个关键时刻。

9·The beginning is always the most critical time.

开始总是最关键的。

10·I will be very brief. We are meeting at a critical time.

我将尽量简短的沟通，因为我们正处于一个严峻的时刻。