Cobitidae
鳅科
🗣️ 情景例句
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧运动课吗？
In fifty years there'll be twenty people per square yard, it is written here.
这里写着，再过五十年每平方码将要住着20人的人口密度。
THE UNIVERSE AND MAN-MADE SATELLITES
宇宙与人造卫星