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VERB
（一段時間后）失去吸引力，變得乏味
If something palls, it becomes less interesting or less enjoyable after a period of time.
例句
Already the allure of meals in restaurants had begun to pall.
飯店里的飯菜已經(jīng)不像以前那樣誘人。
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N-COUNT
一團煙霧狀物
If a pall of smoke hangs over a place, there is a thick cloud of smoke above it.
例句
A pall of oily black smoke drifted over the clifftop.
一團油膩的黑色煙霧飄到懸崖頂上。
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PHRASE
給…蒙上陰影
If something unpleasant casts a pall over an event or occasion, it makes it less enjoyable than it should be.
例句
The unrest has cast a pall over what is usually a day of national rejoicing...
動蕩的局勢給往常舉國歡慶的日子蒙上了陰影。
We don't want to cast a pall over the festivities.
我們不想給慶典蒙上陰影。