He knew that too much exertion would be dangerous, and rest was needed for the tired girl.

他知道过度疲惫是危险的，这个疲惫的女孩需要休息。

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Parents shouldn't give our children too much pressure so that the tired children have no time to relax.

父母不应该给我们的孩子太大压力，让疲倦的孩子们没有时间放松。

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Documentaries provide plenty of information about a certain subject, but when I'm tired I don't want to think too much.

纪录片提供了关于某个主题的大量信息，但当我累的时候，我不想思考太多。

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But he still stammered in some situations, such as when he drank too much or was angry or tired.

BBC: Stammerers get helpline

Mendez hoped that by arriving at dawn, sleepy immigration officials and revolutionaries would be too tired to pay much attention to the group - and it worked.

BBC: Tony Mendez, the real CIA spy in Argo

Perhaps he just gets tired of the rather forced passion play that is the lot of a democratic leader, and believes too much in the force of rational argument.

BBC: Obama victorious, but not yet the master politician