这两个形容词都含有“笨拙的”之意。
awkward ：侧重缺乏优雅、机敏和技巧。用于物时，指使用不便。
- His movements were slow and awkward.
他的动作迟缓笨拙。
clumsy ：指人时，侧重行动笨拙；指物时，侧重制作粗陋或体积、重量过大而呈现笨重。
- That's the third glass you've smashed this week - you're so clumsy!
这已经是你这个星期打碎的第3只杯子了——真是太笨了！ - The first mobile phones were heavy and clumsy to use, but nowadays they are much easier to handle.
第一代手机用起来很笨重，而现在的手机就轻便多了。 - My attempts to apologize were very clumsy (= not said well).
我想道歉，却拙嘴笨舌的。
