比较级： clumsier
最高级： clumsiest

A blackberry 's keys are more forgiving of clumsy thumbs .

黑莓手机的全键盘更多的照顾了笨拙的大拇指。

His speeches were clumsy , and his delivery was frequently stumbling and bombastic .

他的演说拙劣，夸夸其谈，演讲时还常常停顿出错。

Dropped something and said to yourself " I 'm clumsy "

放弃某事后对自己说“我真拙”

With such clumsy communication in that release , audi apparently still has a little more to learn .

声明中竟然有这样不得体的用词，看来奥迪公司还有要学的地方。

They are like a fast-growing adolescent , sometimes boisterous , sometimes clumsy but still developing .

他们就如同正处于快速成长期的青少年，有时兴高采烈，有时又显得笨手笨脚，但一直在发展。