Chelerythrine
白屈菜赤碱
🗣️ 情景例句
I don't think I have a mathemationcal brain.
我想我没有数学头脑。
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
I'm afraid all these offices are non-smoking offices.
恐怕这些办公室都是禁烟办公室。