n. jackhammer
我们在生活中都有痛苦，无论是在街对面吼叫的手提钻,还是当我们站起身发表演讲时突然而至的一阵焦虑。
We all have pain in our lives, whether it's the jackhammer snarling across the street, or the sudden wave of anxiety when we get up to give a speech.
建筑工人用手提钻机在混凝土上不断打孔。
The construction worker battered away at the concrete with a jackhammer.
当手提钻开始工作时，她塞住耳朵；塞住鼻子。
She held her ears when the jackhammer started to operate; hold one's nose.
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