once引导什么状语从句

Question

如题所述

Answer 1

once的引导时间状语从句、条件状语从句。

once用作连词时可指导时间状语从句，once译为一次；曾经；从前；乘以一；丝毫；一点；一次也。例句：Once persistent，it was just once。After that，persistence is nothing but ilusion。Only when the present is persistent，is it really worth working hard曾经的执着，也只是曾经。

So it's great。 Once you have demonstrated，once you have proven that this parallel axis theorem works，then, of course，you can always use it to your advantage。所以很棒。一旦你证明了，一旦你证明了这个平行轴定理是有效的，那么，当然，你总是可以利用它。

Under such circumstances，many drivers just honk once or twice，wait a minute, then drive away。在这样的情况下，很多司机只是按一两下喇叭，等一下，然后就开走了。