Costean
vi. 井探, 水力冲刷勘探, 掘井勘探
🗣️ 情景例句
Of course. It's on the fifth floor of Building No.4. Let's go there.
当然可以。展室在四号楼五层，我们上去吧。
I'm sorry I'm late.
对不起，我迟到了。
There are some books on the stereo.
音响上面有几本书。