Turn the heat down or your cake will burn.把热度调低吧,要不蛋糕就要糊了.Turn the heat up a little bit if you want to eat it in a short time.Please turn the radio down a bit.请把收音机关小点.Please tur...请直接简单点turn ... up那turh sth，on呢？turh sth off恭喜你，谢谢