Pellidon
多孔聚酰胺膜
🗣️ 情景例句
I'm afraid you're right.
恐怕你对了。
Have you been busy with schoolwork?
学校的功课很忙吗？
All those who have contributed towards the gift will sign their names in a large album which will be sent to the headmaster's home.
所有凑钱买此礼品的人都将自己的名字签在一本大签名簿上，签名簿将被送到校长的家里。