Keene
n. 基恩（人名）；美好
🗣️ 情景例句
and he can answer any questions.
他也可以回答任何问题。
Hello, may I change some money with my Master card?
我能否用万事达卡来兑换些钱吗？
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。