1 any

2 arbitrary

3 at will

4 at random

1 creative

2 creativity

1 old variant of 笑[xiào]

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 smile

2 classifier: 个 gè

3 classifier: 丝 sī

4 to smile

1 obstinately clinging to one's course (idiom)

2 willful

3 one's own way

4 dogmatic

1 in two minds about sth (idiom)

2 half-hearted

3 shilly-shallying

1 the one who has retreated 50 steps laughs at the one who has retreated 100 steps (idiom)

2 the pot calls the kettle black

1 to dismiss sth with a laugh (idiom)

2 to laugh it off

1 like a smile yet not a smile (idiom)