You'll find it helpful to talk things over with a friend.
把情况和朋友详细聊一聊，你会觉得大有帮助。
The people I spoke to were very helpful.
我交谈过的人都很肯帮忙。
The booklet should be very helpful to parents of disabled children.
这本小册子对于残疾儿童的父母会很有用。
We were enlisted as helpers.
我们应邀协助。
We depend solely upon our voluntary helpers.
我们完全依靠我们的志愿者。