The patent has been in controversy______(自从10年前首次被批准以来).ever since they were fir

游客2024-05-12  4

问题 The patent has been in controversy______(自从10年前首次被批准以来).

选项

答案 ever since they were first authorized ten years ago

解析 ①时间状语从句:“自从”ever since;②被动语态:空白处“他们”和“批准”为动宾关系。应译为英语的被动语态;③“批准”authorize。
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