meal ticket 餐券，飯票；一部分人的生活來源和保障
a.Nancy doesn't really love her rich boyfriend at all;she just takes him as her meal ticket.
南希根本不愛她那個有錢的男友，只是把他當成能夠提供生活來源的飯票罷了。
b.Her English skills will be her meal ticket when he goes into foreign trading.
她良好的英語技能是她從事外貿行業的成功保證。

leave well alone 不要沒事找事、多此一舉；見好就收，適可而止，不要畫蛇添足
You should leave well alone and be happy with your essay the way it is.
你應該對你的論文感到滿意了，不必在去畫蛇貼足。
leave sb./sth.alone 把某人或則某事放在一邊不加理睬，不去管
leave me alone 別煩我，別惹我，滾開

Music：How Deep Is Your Love-Bee Gees
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