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
关节: 1.[生理学] (骨头连接处) joint; articulation; articulus; juncture; arthrosis; article; artus; knuckle 短语和例子手指关节 finger joint; 一个关节脱臼了。 a joint has started. 人老了, 关节也硬化了。 the man is getting old and h
