这药要过很长时间才发生作用吗？

Does the drug take long to act?

youdao

你们进行过很长时间来学习阅读吗？

Have you practiced so long to learn to read?

youdao

她在罗马住过很长时间。

She lived in Rome for a long time.

youdao

这药要过很长时间才会对大脑产生作用吗？

Does the drug take long to act on the brain?

youdao

这药要过很长时间才对神经中枢发生作用吗？

Does the drug take long to act on the nerve centers?

youdao

即使过一很长时间，他们发现很难用汉语说一些简单的东西。

Even after a long time, they find it difficult to say simple things in Chinese.

youdao

我花了很长时间，但我答应过自己有一天我会完成它。

Took me a long time but I promised myself one day I would finish it.

youdao

我花了很长时间，但我答应过自己有一天我会完成它。

Took me a long time but I promised myself one day I would finish it.

youdao