aid的固定搭配：aid sb/sth in sth/in doing sth，意为帮助某人做某事，或者aid sb with sth，意为援助某人某事。aid可作名词和动词，作为名词时，意为救援物资、援助款项、助手、辅助物，作为动词时，意为帮助、援助。
例句：He was breathing only with the aid of a ventilator.
One of the staff saw he was in difficulty and came to his aid.
Photos make useful teaching aids.
The new law gives authorities a responsibility to provide aids to the disabled...
例句：The new test should aid in the early detection of the disease.
This feature is designed to aid inexperienced users.
They were accused of aiding him in his escape.
Aided by heat and strong winds, the fire quickly spread.
The export sector will aid the economic recovery...