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- retromanubrial dullness 胸骨柄后濁音
- The dull play seemed to last an eternity. 這場乏味的劇似乎演個沒完沒了。
- Market dull and slacken no business report. 市場蕭條胩衰退，沒有有關交易的報道。
- The absence of color in that drawing make it dull. 那幅畫因沒有著色而顯得晦暗。
- The dying fire was throwing out a dull red light. 將要熄滅的火發出暗紅色的光。
- The old man's life became dull and colorless. 老人的生活變得呆板無趣。
- I feel a dull pain in the stomach. 我覺得胃部隱隱作痛。
- A person regarded as ungainly or dull witted. 愚笨的人被認為是笨拙的或弱智的人
- He couldn't teach such dull children. 他教不好這樣呆笨的孩子。
- He felt a dull ache in his shoulder. 他感到肩膀隱隱作痛。
- He is rather dull in comparison with others. 和別人比較起來，他相當遲鈍。
- She took drugs to dull the pain. 她吃了葯以減輕疼痛。
- All work and no pay makes Jack a dull boy. 只有工作無工資，傑在也得變蠢才。
- A dull, pedantic speaker or writer. 學究枯燥而迂腐的講話人或作者
- Perhaps his nerve is naturally too dull to admit of any excitation. 大概他的神經天生就很遲鈍以至不容有任何刺激的餘地。
- He ploughed through the dull book to the end. 他很費力地把那本枯燥乏味的書看完了。
- He had a dull pain in the chest. 他胸部隱隱作痛。
- All work and no play makes Jack a dull boy. <諺>只工作不玩耍，聰明傑克也變傻。
- It's very dull today but I don't think it'll rain. 今天天氣很陰暗,但我認為不會下雨。
- The absence of color in that drawing makes it dull. 那幅畫因沒有著色而顯得晦暗。
