Bormethyl
三甲硼
🗣️ 情景例句
Oh, the usual problems.
还不是那些老问题。
To operate a steam locomotive
驾驶蒸汽机车
At that moment, a large black car with four officers inside it, stopped at the camp gates.
正在此时，一辆黑色大轿车在军营门口停了下来。里面坐了4个军官。