1) The meat has gone bad.
这肉已变质了。
2) The beef is high.
牛肉变质了。
3) This milk has gone off, ie has turned sour.
这牛奶已变质.
4) The milk has gone off.
这牛奶已变质。
5) This cheese is off.
这乳酪已变质。
6) This milk has turned.
这牛奶变质了。
参考词条