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1.in vain[in'vein] 徒然，白费，无效
They endeavoured to make her happy but in vain.
他们尽量使她快乐，却徒劳无功。
2.petition n. 祈求，请愿书，诉状 vi. 请愿，祈求 vt. 向 ... 请愿或祈求
Many subscribers' names are in the petition.
请愿书上有很多签名者的名字。
3.bracelet['breislit] n. 手镯
I'd like you to take this bracelet as a gift.
我希望你把这手镯礼物收下。
4.perpetually adv. 持久地，永恒地
This tree regerminates perpetually.
这棵树不断重新生长。
