adj.呆滯的；鈍的；遲鈍的；無趣的；暗的

v.變鈍；遲鈍

Jack had all work but no play, making him a dull boy. 杰克只學(xué)不玩,這使得他成為一個呆笨的孩子。

It's impossible to cut a pineapple with such a dull knife. 用一把這么鈍的刀子切菠蘿是不可能的。

The mind becomes dull if the body doesn't get on exercise. 要是身體得不到鍛煉,頭腦也會遲鈍的。

This book is rather dull. 這本書很枯燥。

The dying fire was throwing out a dull red light. 將要熄滅的火發(fā)出暗紅色的光。

The heating was turned up high to dull his audience's senses. 暖氣溫度被調(diào)到很高，以至于聽眾的意識變得遲鈍。

She gave me some medicine to dull the pain. 她給了我一些可減輕疼痛的藥。

The sensory nerves of this old man seem to dull. 這位老人的感覺神經(jīng)似乎不太敏銳了。

dull可用作定語、表語或賓語補(bǔ)足語。

dull的比較級為duller,最高級為dullest。

n.極度沉悶或單調(diào)；非常無聊之事物