ph.

1. Milk goes bad quickly if it is not refrigerated.
如果不冰冻牛奶很快就变酸。

2. The apples went bad.
苹果开始腐坏。

1. 变坏;变酸;腐败：go back to 追溯到... | go bad 变坏;变酸;腐败 | go beyond the limit 超过限度

2. (食物等)变坏,坏掉：go all out 全力以赴 | go bad (食物等)变坏,坏掉 | go by 走过,经过

3. 变坏：go all the way back to the time of 起源于 | go bad 变坏 | go by 经过

4. 腐败;变质：feel bad about为......感到难受;抱歉 | go bad腐败;变质 | go from bad to worse每况愈下

verb

1. become unfit for consumption or use

e.g. the meat must be eaten before it spoils

Synonym: spoil

2. stop operating or functioning

e.g. The engine finally went
The car died on the road
The bus we travelled in broke down on the way to town
The coffee maker broke
The engine failed on the way to town
her eyesight went after the accident

Synonym: failgive waydiegive outconk outgobreakbreak down