They might sleep in the day and work at night for example - which goes against the light-dark pattern.
例如,他们也许要在白天睡觉,晚上工作,这和昼夜循环相冲突。
As the Chinese saying goes "To get prepared against a rainy day", we had better think more of the possible problems which might happen afterwards.
国有句俗话叫“未雨绸缪”。我们最好多想想以后可能会发生的问题。
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