将下列短语进行相应匹配。

be busy with

答案 1

struggle with

答案 2

safety issue

答案 3

carry out

答案 4

正确答案是：be busy with → 忙于某事；忙着做……, struggle with → 与……斗争；纠结，挣扎着做某事, safety issue → 安全问题, carry out → 执行，实行