1.help out 帮助……做事
I've read that you've enlisted some 12-year-olds to help out in your campaign.
我读到你让一些12岁的孩子在宣传活动中做帮手 。
2.once and for all 一次了结地,一劳永逸地;彻底地;最终地
We must take off the kid gloves and smash these evil monsters once and for all.
我们不能再过于小心翼翼了,必须彻底消灭这些恶势力 。
3.because of 因为,由于;基于
The drainage system has collapsed because of too much rain.
由于降雨过多,排水系统已经彻底瘫痪了 。