help
单词辨析：
最普通用词，指积极地为他人提供物质、精神或其他方面的帮助，主语可以是人或物。
I helped her to carry the suitcase up the stairs.
我帮她把行李箱拎上了楼。
My cane helps me walk.
我的拐杖帮助我行走。
Your suggestion helped us a lot.
你的建议对我们帮助很大。
较正式用词，多指提供经济上或其他急需的帮助，强调帮助有困难的弱者，主语通常是人，常与介词 in/with 连用。
The refugees were aided by the UN.
难民们得到了联合国的援助。
We aided him in looking after his children.
我们帮他一起照看孩子。
尤指起协助的作用，多用于帮助他人学习、工作或研究，常与介词 in/with 连用。
He was employed to assist in the development of new equipment.
他受聘协助开发新设备。
A team of nurses assisted the doctor with the operation.
一组护士协助医生施行手术。
相关例句：
There's bread on the table. Help yourself
桌上有面包。你自己拿吧。
America's priority is to help nations defend themselves
美国最优先考虑的是帮助各国自卫防御。
'Please don't cry.' — 'I can't help it.'
“别哭了。”——“我忍不住。”
He tries to help people with problems, but firmly believes they should do more to help themselves.
他尽力帮助有困难的人，但仍坚信他们应该更加努力自救。
I can't help feeling sorry for the poor man
我不禁为这个可怜的男人感到难过。
Building more motorways and bypasses will help the environment by reducing pollution and traffic jams in towns and cities
建造更多的高速公路和绕城道路能够减少城镇中的污染和交通堵塞，有利于改善环境。