Tetrahydroalstonine
四氢鸭脚木碱
🗣️ 情景例句
in a horse and carriage.
坐马车。
I know the boy whose father is a scentist.
我知道那个男孩的父亲是科学家。
These satellites go round the earth and help us to learn more about the earth, the weather and other things.
这些卫星绕着地球转，帮助我们更好地了解地球、天气和其他情况。