1 any

2 whatever

3 whichever

4 whatsoever

1 surname He

1 there is no need

2 why should

1 when

1 skill

2 art

3 kung fu

4 labor

5 effort

1 one man can hold the pass against ten thousand enemies (idiom)

1 it's a small world (idiom)

1 What can you have against it? (idiom)

2 We should do this.

3 Go for it!

1 of what use is it

2 (idiom)

1 If you work at it hard enough, you can grind an iron bar into a needle.

2 cf idiom 磨杵成針|磨杵成针, to grind an iron bar down to a fine needle (idiom); fig. to persevere in a difficult task

3 to study diligently