他不能太长时间地保持这种疯狂的速度。

He could not maintain his maniac speed for much longer.

《柯林斯英汉双解大词典》

事实上，种子不能长时间保持发芽的能力。

Actually, the seeds don't retain the power to germinate for very long.

youdao

毕竟，要是这片曾经的机遇之地都不能保持，其他城市又怎么可能做到呢？

After all, if the one-time land of opportunity can't be fixed, what does that say for the rest of America?

youdao

It's a fact about the human condition that the amazing things we are don't stay amazing.

这是关于人类处境的一个事实,我们不能保持了不起。

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