assistance的`意思：
n. 帮助，援助,〈古〉出席，出席者,辅助设备
assistance用作名词的用法例句：
We are ready to render them economic assistance.我们愿意向他们提供经济援助。
He gave the assistance to me when I was in trouble.我有麻烦时,他向我伸出援助之手。
You can not rely on his assistance.你不能指望他能帮助你。
assistance用法例句：
1、Any assistance you could give the police will be greatly appreciated.
您提供的任何帮助警方都将万分感谢。
2、He was of great assistance to me in researches for my books.
在我为写书所作的研究中，他提供了很大的帮助。
3、She can still come downstairs with assistance but she's very weak.
在有人搀扶的情况下她还是能够下楼的，但是很虚弱。