We must do something to stop it going extinct.
我们必须采取措施阻止它灭绝。
Stop complaining. - Instead, use your time and energy to do something about it.
不要抱怨。—相反的，用你的时间和精力去解决问题。
In fact, it is never the time to stop trying to do something.
事实上，要做什么事，永远都不会有停止的时候。
In fact, it is never the time to stop trying to do something.
事实上，要做什么事，永远都不会有停止的时候。
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