Diet
I eat a healthy/ unhealthy diet.

Keeping food
Go bad/ off
I left the fridge open all night and all the food’s gone off.

Rotten 腐烂的
Rotten tomatoes have a nasty smell.

Sour (牛奶)变酸的
When the milk has gone sour, don’t drink it.

Fridge 冰箱
Defrost 解冻
I need to defrost the frozen chicken before cooking it.

Addictive 添加剂
I prefer food with no artificial addictives/ chemical additives. 人造添加剂/ 化学添加剂

Preservative 防腐剂
Junk food usually contains lots of additives and preservatives.

Egg
Eggshell鸡蛋壳
Egg white 鸡蛋清
Egg yolk 鸡蛋黄
Crack the eggs into a bowl.

Boiled eggs
I have boiled eggs for breakfast.
Soft-boiled/ hard-boiled 煮嫩的/煮老的
I prefer soft-boiled eggs to hard-boiled ones.
Scrambled eggs 炒鸡蛋(用牛奶和黄油)
I sometimes have scrambled eggs without milk or butter.
Omelet煎蛋(常加入奶酪﹑ 作料﹑ 蔬菜等)
(saying 谚) (one can't) make an omelette without breaking eggs  (one can't) achieve a desired aim without some loss or damage 不打破鸡蛋就做不成煎蛋卷; 不破不立。