clumsy 
英 [ˈklʌmzɪ]  美 [ˈklʌmzi] 
adj. 笨拙的，愚笨的，制作粗陋的

例句：
Oh, how clumsy of me! 

噢，我太笨手笨脚了！

Unfortunately, I was still very clumsy behind the wheel of the jeep. 

令人遗憾的是，我开起吉普来还是笨手笨脚的。

The action seemed a clumsy attempt to topple the Janata Dal government. 

这一试图推翻人民党政府的行动似乎缺乏策略。

He denied the announcement was clumsy and insensitive. 

他否认该通告不得体、不近人情。

It was a clumsy-looking aeroplane. 

那架飞机样子很难看。