The province boundaries are marked in with a fine mapping pen.

是用很细的绘图笔加画在地图上的。

youdao

The county boundaries have been marked in with a fine mapping pen.

县界用细绘图笔加画在地图上了。

youdao

The county boundaries have been marked in with a fine mapping pen.

县界用细绘图笔加画在地图上了。

youdao