a thorn in sb.'s flesh 眼中钉,肉中刺...No rose without a thorn 没有无刺的玫瑰...white-thorn n.山楂...thorn n.刺,棘,荆棘...thorn apple 曼陀罗...thorn-poppy 蓟罂粟...buck-thorn oil 鼠李油,鹿棘油...thorn-apple crystals 尿酸铵结晶...thorn-apple poisoning 曼陀罗中毒...
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