Laachite
黑云透长岩
🗣️ 情景例句
I wonder whether I might ask you a question.
我是否可以问你一个问题？
Every door may be shut but death's door.
除了死门外，每门都可关。
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。