1 any

2 arbitrary

3 at will

4 at random

1 creative

2 creativity

1 to have the nerve

2 what a cheek!

3 to feel no shame

4 to overcome the shame

5 (is it) proper? (rhetorical question)

1 unexpected

2 accident

3 mishap

4 classifier: 个 gè

1 idea

2 opinion

3 meaning

4 wish

5 desire

6 interest

7 fun

8 token of appreciation, affection etc

9 classifier: 个 gè

10 to give as a small token

11 to do sth as a gesture of goodwill etc

1 obstinately clinging to one's course (idiom)

2 willful

3 one's own way

4 dogmatic

1 before the first wave subsides, a new wave rises (idiom); a new problem arises before the old is solved

2 many twists and turns to a story

3 one thing after another

1 in two minds about sth (idiom)

2 half-hearted

3 shilly-shallying

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

2 still wet behind the ears

1 before the troops move, fodder and provisions go first (idiom); logistics comes before military maneuvers

2 an army marches on its stomach