向某人伸出援助之手用英语怎么说？

give sb a hand
assist sb. with sth. 帮助某人[做某事]
assist sb. to do sth. 帮助某人[做某事]
assist sb. in doing sth. 帮助某人[做某事]
help sb do sth
do sb a favor 帮某人一把,援助某人一下,
例句:Will you do me a favor and phone for me?
你能否帮个忙给我打个电话？

aid sb with sth.
I aided him with money.
我资助了他。

give a hand to 给...帮助
give a helping hand 伸出援助之手; 助一臂之力
give sb a hand 帮助某人
give sb. a hand 给予帮助
give a help ing hand 助一臂之力
give sb a helping hand 助某人一臂之力
give sb a helping hand in 在...中助某人一臂之力

offer one's help

例如：He always offers his help when I am in trouble.
当我有麻烦时他总能向我伸出援助之手．

give...a hand

就直接翻译成give sb. a hand 就可以啦!