Sierozem
n. [地]灰钙土
🗣️ 情景例句
I called channel five.
我打电话给了第五频道。
There is nothing which has not been bitter before being ripe.
事情在成功前没有不艰苦的。
There she studied the teaching of deafblind children.
在那里，她学习聋盲儿童的教学工作。