1 pit

2 stone

3 nucleus

4 nuclear

5 to examine

6 to check

7 to verify

1 core

2 nucleus

1 walnut

2 classifier: 个 gè

3 classifier: 棵 kē

1 surname Mei

1 plum blossom

2 clubs ♣ (a suit in card games)

3 wintersweet (dialect)

1 lit. to quench one's thirst by thinking of plums (idiom)

2 fig. to console oneself with illusions

1 lit. green plums and hobby-horse (idiom)

2 fig. innocent children's games

3 childhood sweethearts

4 a couple who grew up as childhood friends