1 to feel sad

1 sour

2 tart

3 sick at heart

4 grieved

5 sore

6 aching

7 pedantic

8 impractical

9 to make sarcastic remarks about sb

10 an acid

1 yogurt

1 to ache

1 breast

2 milk

1 smell of mother's milk not yet dried (idiom); immature and inexperienced

2 still wet behind the ears

1 to experience one's full share of sorrows (idiom)