Pellidon
多孔聚酰胺膜
🗣️ 情景例句
Yeah, they're getting the assembly hall
是啊，他们在布置大礼堂
What time does the train for Boston leaves?
去波士顿的火车几点开？
I turned the corner and looked in astonishment.
我转了个弯，十分惊奇地看着。