hammersn. 锤( hammer的名词复数 ); 链球; (拍卖时用的) 木槌; 音槌;v. 锤打( hammer的第三人称单数 ); 反复敲打,连续击打(尤指发出大声); 击败; 猛踢;[例句]Much of their study and revision was done to the thud of hammers and pneumatic drills他们学习和复习时大多都伴着锤子和风钻沉闷的敲击声
mushroom:蘑菇