assistance (with sth) | assistance (in doing sth/to do sth)；
assistancen.帮助；援助；支持
They rendered assistance to the disaster victims.
他们给灾民提供了援助。
He can walk only with the assistance of crutches.
他只能靠一副拐杖走路。
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。
