Lactofil
合成蛋白质纤维
🗣️ 情景例句
What now?
下一步呢？
What are you reading?
你正在读什么？
Ships may be delayed by storms; flights may be cancelled because of bad weather, but trains must be on time.
轮船船期可能因风暴而推延，飞机航班可能因恶劣天气而取消，唯有火车必然是准点的。