动 flow，drift，move，wander；名 stream of water，stream，sth. resembling a stream of water，flow ；

[例句] 终有一天，你会学会让泪往心里流。 Eventually, you'll learn to cry that on the inside.

[例句] 每次我感冒都会流鼻血。 Whenever I have a cold I get a nosebleed.