1 two

2 2

3 (Beijing dialect) stupid

1 twenty

2 20

1 twelve

2 12

1 to lead to

2 to create

3 to cause

4 to bring about

1 hair

2 drawing brush

3 (in the) least

4 one thousandth

5 currency unit, 0.1 yuan

1 don't do it, or don't rest (idiom); either give up, or go through to the end

2 Since we started, we must carry it through whatever happens.

3 in for a penny, in for a pound

1 thoroughly (idiom)

2 completely

3 one and all

4 very clean

1 a tiny bit (idiom)

2 an iota

1 one divides into two

2 to be two-sided

3 there are two sides to everything

4 to see both sb's good points and shortcomings (idiom)

1 to make a terrible scene (idiom)

2 to throw a tantrum