Propyla
n. 入口；普罗皮纶聚丙烯纤维 (propylon的变形)
🗣️ 情景例句
What time is it?
现在是什么时间了？
How did he get away with cheating?
他是如何考试做弊而未被发现？
People are always talking about 'the problem of youth'.
人们总是在谈论“青年问题”。