流动: 1.(液体或气体移动) flow; run; circulate 短语和例子河水缓缓地流动。 the river is flowing slowly. 空气流动。 the air is circulating.2.(经常变换位置) going from place to place; on the move; mobile 短语和例子流动电影放映队 mobile film
出口: 1.(说出话来)speak;utter:如果你认为那不公平, 为什么不说出口? if you thought that wasn't fair, why didn't you speak up?2.(出口处) exit; exitus; way out 短语和例子会场出口 the exits of a conference hall3.(本国或本地区的货物运出去; 输出)