My mother didn't need it, but she needs it now.

我妈妈原来不需要它，但她现在需要了。

youdao

Jane left her geometry book in my bag, and she needs it to do her homework.

珍妮把她的几何书忘在我的书包里了，她要做功课。

youdao

She's a nice girl, but she can always depend on her parents to help her out when she needs it.

她是个挺好的女孩，可当她需要帮助的时候，她总是要依靠她父母解救。

youdao

If she needs it to grow for her future, it needs to be diversified.

NPR: How to Weather a Rocky Economy

She loves Jack and might be persuaded to give it a try just for his sake, not because she needs it.

FORBES: When Do We Become "Old"?

These owners of the businesses only want to make a product do enough to make somebody buy it when he or she needs it.

FORBES: Capitalism, After The Election