Proctanal
肝素胆碱
🗣️ 情景例句
Thanks, Mom.
谢谢 ，妈妈。
The doctor advised me to get plenty of exercise.
医生建议我多锻练。
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。