他们把黑土掺上沙子.They mixed the sand with the black clay.当表层黑土全部被冲走之后, 农民们就向西部转移,建立新的种植园.When the black topsoil was all washed away, farmers moved westward and started new plantations.洋葱以及稻米生长在三角洲附近的黑土里.Onions and rice grow in ...

“黑土”的拼音为：hēi tǔ...

“黑土”的英语可以翻译为：lack earth，black soil，blackland ...