1、The wild boar plow the earth up like a furrow and does irreparable damage in the cultivated lands.
公野豬把地面拱得像一條壟溝，耕地給糟蹋得不能種莊稼了。

2、He carefully earth up the root of the newly-planted tree.
他仔細(xì)地在新栽的樹(shù)的根部培上土。

3、Don’t forget to earth up the roots firmly when you plant the tree.
種樹(shù)時(shí)不要忘記用土把樹(shù)根蓋好。

4、Earth up the roots of a newly-planted tree
壅土覆蓋新栽樹(shù)的根部

5、earth up the roots of maize
在玉米根上培點(diǎn)土