Barrier method
柱式开采法
🧩 词语组成解析
🗣️ 情景例句
Yes, it is right.
对，是正确的。
These two students drank a lot of coffee.
这两个学生喝了许多咖啡。
Lights were blazing and men were running here and there: they had just discovered that a prisoner had escaped.
他们刚刚发现有一个俘虏跑了。