我不确定她一个人怎么应付三个孩子的。

I wonder how she's ___hacking it alone with three kids.

警方逮捕了一名涉嫌入侵银行系统的黑客。

The police arrested a suspect for ___hacking into the bank's system.

他用砍刀在树干上胡乱劈砍。

He was ___hacking at the tree trunk with a machete.

教室里那个男孩一直咳嗽，影响了其他人听课。

The boy in the classroom kept ___hacking, disturbing the others' concentration.