Babysitters
声音指示器
🗣️ 情景例句
Believe me, I won't.
放心， 我不会的。
How long is the ticket valid?
这车票有效期多久？
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。