A tired body meansa weak body. And a weak body gets sick easily.

疲惫的身体是虚弱的，而虚弱的身体很容易生病。

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Rousseau-A weak body will never be able to foster the vigor of soul and wisdom.

卢梭(德国诗人)：虚弱的身体将永远不会培养有活力的灵魂和智慧。

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However, inactivity can result in a slow and weak heartbeat that does not sufficiently move the blood to provide oxygen for every cell in the body.

然而，不活动可以导致缓慢而无力的心脏跳动，导致不能充分的向身体各部细胞供血。

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However, something is amiss, when, in the service of advocating a particular policy, activists and health authorities have to base their claims on a weak body of evidence and ignore a much stronger and more rigorous body of painstakingly accumulated data, which helps put the matter in perspective.

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The crash tests found the Latin American model had a weak, unstable body structure that offered occupants little protection in even non-serious wrecks.

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EU's new foreign-policy chief, will also be put in charge of the ten-nation Western European Union, a weak but explicitly military organisation which the larger body is now expected to swallow up, though this raises awkward questions about countries more involved with one than the other.

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