Perse
a. 紫黑色的；深灰色的；深蓝色的
🗣️ 情景例句
Nothing.
没有什么。
Our factory would have no problem in turning out the 2000 units you asked for in your inquiry.
我们工厂完全可以生产出你方询价单中要求的2000件货品。
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。