20140202 每日三單字 (omen / decay / vex)

omen
預兆，兆頭[C][（+of）]
Some magpies were singing in the tree when I left home for the first time , a good omen in Chinese culture . 當我初次離家時，喜鵲在樹上唱歌，在中國文化中這是個好預兆。
an omen of defeat 失敗的前兆
vt. 及物動詞
預示，預告


腐朽，腐爛；蛀蝕
Sweet potatoes decayed after the frost . 霜下了之後，地瓜爛掉了。
衰敗；衰退
The Turkish Empire decayed in the nineteenth century . 土耳其帝國在十九世紀時衰落。
vt. 及物動詞
使腐朽，使腐爛


decay
使（牙齒）蛀壞
Sweets can decay the teeth . 糖果會蛀蝕牙齒。
n.[U]
腐朽，腐爛；蛀牙
They are figuring out a way to stop the decay of the ancient building . 他們在想辦法阻止這古老建築的朽壞。
衰敗；衰退
His mental decay is distressing . 他的智力衰退令人苦惱。
（放射性物質的）蛻變

vex
使生氣；使痛苦；使煩惱；使困惑[H][（+about/with/at）]
She was vexed at her failure . 她因失敗而苦惱。
His mother was vexed with him for his laziness . 他母親因他懶惰而生他的氣。
詳細討論，爭論
Let us not vex the question . 我們不要細論這個問題了。
【書】使動蕩；使洶湧