17.to strike gold打开财富(或成功)之门；踏上通往财富(或成功)之路
The company has struck gold with its new holiday development.该公司凭借其新开发的度假村而赚了个盆满钵满。
18.to strike home
torpedo, bullet +击中目标；words, remark +切中要害；说到点子上
He paused to see if his words had struck home.他停下来看他的话是否说到点子上了。