It's simple biology and there is nothing more to it.

这只是简单的生物学而已。

youdao

And there is nothing more painful than to let you're feelings take you down.

没有什么，能比你情绪低落的样子，更让我感到心疼。

youdao

Often your worries are for the unknown and there is nothing more you can do to influence the outcome.

你的担心通常会是他人之忧，再怎么做也影响不了结果。

youdao

"And there is nothing more important than protecting the identities of CIA officers.

VOA: standard.2009.04.20

And there is nothing more important as a business owner than thinking clearly and making smart decisions.

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And there is nothing more word-of-mouth-worthy than surprise and delight random acts of brand kindness toward your consumers.

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And there is nothing more dangerous than an inviolable aggressor.

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