Calcinm phenylate
[化] 苯酚钙
🧩 词语组成解析
苯醚
🗣️ 情景例句
I hear the exams will be very tough.
我听说考试挺难的。
I wish you had called me back the next day,as I had asked you to.
我希望你明天打电话给了我回来,正如我要你做的。
What happened before printing was invented?
印刷术发明以前是怎么一回事？