We'd better add in some lemon juice before mixing the flour with sugar.

在面糖之前, 我们最好进一些柠檬汁。

Sprinkle the avocado slices with lemon juice.

将柠檬汁洒在鳄片上。

Hot lemon juice and honey is just the thing for a cold.

热柠檬汁加蜂蜜是治感冒的良药。