Speleogen
次生洞穴结构
🗣️ 情景例句
I have good eyesight.
我的视力挺好。
I worked as an intern in that firm last summer.
去年夏天我在那家商行实习。
His work starts at half past eight, and finishes at a quarter to five.
30开始工作，4：45下班。