“level terrace”可以造什么句，level terrace造句

"That place where the crops are growing over there is a second-level terrace-both were once the riverbed of the Huangshui.

"This is a first-level terrace, see?" he said, analyzing the topographical features for the girl.

While level terrace had the functions of conserving soil and water storage, it increased the possibility of the soil pollution too.