我希望能有一种简单的石蕊测试，让我可以直接展示给你们并让你们知道，你们中的谁上这门课是一个错误。

I wish there were some easy litmus test that I could just give you so you'd know which of you would be making a mistake taking this class.

youdao

我希望能有一种简单的石蕊测试，让我可以直接展示给你们并让你们知道，你们中的谁上这门课是一个错误。

I wish there were some easy litmus test that I could just give you so you'd know which of you would be making a mistake taking this class.

youdao