讲解文本：
clumsy 笨手笨脚，笨拙的 How clumsy of me to break the cup! 我打碎了这个杯子，我是有多笨！ He is so clumsy that he can't even tie his shoes. 他笨手笨脚的，连系鞋带都不会。
疯狂练习吧！
