turn over,turn up,turn around各什么意思？

turn over 翻过来，翻倒；仔细考虑；交，移交（权力等）例：The car was turned over and the driver seriously injured.

汽车翻倒了,司机受了重伤。 turn up 开大，调大；出现，来到例：Something unexpected has turned up.

发生了没有意料到的事情。 turn around转变，(使)转好