对于操作者来说所需的一切就是如何做出适当的吸嗅动作。

All that is required is for the operator to work out how to sniff appropriately.

youdao

看……我们在生活中所做的一切就是学习如何成为出类拔萃。

Look... all that we do in our life is learn how to become outstanding.

youdao

这就是一切如何开始的。

That is how it all got started.

youdao

这就是一切如何开始的。

That is how it all got started.

youdao