文都版答案解析：

82.已经把那片荒地变成了肥沃的农田have turned that barren land into the fertile farmland

本题知识点考查：固定短语turn sthinto sth的应用。

83我几乎认不出她来hardly could I have recognized her

本题知识点考查：否定副词引起的部分倒装；与过去事实相反的虚拟语气。

84. 使法官确信我们是清白的convinced the judge of our innocence

本题知识点考查：固定搭配convince sb of sth的应用。

85.你可以放心You can rest assured that 或者You can assure that

本题知识点考查：assure后接that从句。

86.试图征服它是不明智的it is not wise to try to conquer it

本题知识点考查：并列句的连接与形式主语。

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其它版翻译参考答案：

82、已经把荒地变成肥沃的农田waste land into fertile farmland

83、我几乎认不出她来I almost did not recognize her

84、使法官确信我们是清白的judges convinced that we are innocent

85、你可以放心 you can be assured

86、试图征服他是不明智的He is unwise to attempt to conquer