• 今天化学课上腐蚀性晶体实验

    Today, I was doing a lab in chemistry involving caustic crystals.

    youdao

  • 这里需要提醒那些化学课上打瞌睡人,滴定计算溶液物质浓度一种方法

    Titration, to remind those who dozed through their chemistry lessons, is a way of working out the concentration of a substance in a solution.

    youdao

  • —今天午迈克尔史密斯老师的化学课上迟到了。 ——怎么会呢?据我所知,他从不迟到。

    Michael was late for Mr. Smith's chemistry class this morning. —How come? As far as I know, he never came late to class.

    youdao

  • 很少历史或是化学课上需要中文讨论发现对此毫无准备,非常尴尬。

    I had had a few classes that morning, and had found myself severely unprepared to talk about subjects like history and chemistry in Chinese.

    youdao

  • 很少历史或是化学课上需要中文讨论发现对此毫无准备,非常尴尬。

    I had had a few classes that morning, and had found myself severely unprepared to talk about subjects like history and chemistry in Chinese.

    youdao

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