不自然的用英语怎么说？

不自然的

例句

• schooling and rigorous book learning put unnatural restraints on children. 学校与枯燥的书本教育给学生造成不自然的压抑。
• The veneer of artificiality which she had acquired at the fashionable schools were thrown off. 那种她在时髦学校里沾染的不自然的虚饰都被抛到了九霄云外.
• This constrained and messy adultery was a damned poor substitute for having a wife. 这种不自然的,不可告人的私情,也算是聊慰无妻之苦吧,但未免太糟糕了.