同根派生 river bottom相關(guān)詞英漢例句They were dragging the river for the missing child.他們正用抓鉤在河底打撈那個(gè)失蹤的孩子。A lot of sludge was scooped out of the base of the river.從河底中挖出了許多淤泥。river bottom更多例句