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n.手提鉆...

The construction worker battered away at the concrete with a jackhammer.建筑工人用手提鉆機在混凝土上不斷打孔.She held her ears when the jackhammer started to operate; hold one's nose.當手提鉆開始工作時,她塞住耳朵; 塞住鼻子.I talk to my friend and some...

jackhammer的音標：jackhammer的英式發(fā)音音標為：['d??kh?m?(r)]jackhammer的美式發(fā)音音標為：['d??k?h?m?]...