M. m.
[医] 粘膜
🗣️ 情景例句
Learning to express onself well is an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
Do you think it looks good on me?
你看我穿着好看吗？
You may have heard of Birth Control.
你们也许听说过控制人口出生的措施。