Valving
装设阀门
🗣️ 情景例句
Tomorrow morning at ten o'clock. Try it.
明早上午十点。来试一试吧。
Do you have an umbrella?
你有雨伞吗？
A few hours earlier, someone had told the police that thieves would try to steal the diamonds.
数小时以前，有人向警方报告，说有人企图偷走这些钻石。