Semipermeability
半渗透性
🗣️ 情景例句
where we had our meals ...
我们用餐的地方……
How long will it take for a telegram to get to California?
你把电报传到加州要多长时间？
This time it was the postman and he wanted me to sign for a registered letter!
这次是邮递员，他要我签收一封挂号信！