1 thing

2 object

3 classifier: 个 gè

1 each other

2 mutually

3 mutual

1 person

2 character (in a play, novel etc)

3 protagonist

4 classifier: 个 gè

1 animal

2 classifier: 只 zhī

3 classifier: 群 qún

4 classifier: 个 gè

1 to pair up

2 to match

3 to arrange in pairs

4 to add sth into a group

1 lit. one object bests another object

2 every item has a weakness (idiom)

3 there is a rock to every scissor, a scissor to every paper, and a paper to every rock

1 traceable to the same stock (idiom); of a common origin (of trends, ideas etc)

1 don't fight, won't make friends (idiom); an exchange of blows may lead to friendship

1 lit. don't fight, won't make friends (idiom); an exchange of blows may lead to friendship

2 no discord, no concord

1 passed on from generation to generation (idiom); to hand down