1 to roll up

2 roll

3 classifier for small rolled things (wad of paper money, movie reel etc)

1 to ascertain

2 to act on

3 to criticize

4 to pass on

5 classifier for batches, lots, military flights

6 tier (for the ranking of universities and colleges)

1 to criticize

2 criticism

3 classifier: 个 gè

1 examination paper

2 test paper

3 classifier: 份 fèn

4 classifier: 张 zhāng

1 to hand in one's examination script

1 lit. to return in a swirl of dust (idiom)

2 fig. to regroup and come back even stronger

3 to make a comeback

1 lit. always with a book in hand (idiom)

2 fig. (of a student or scholar) diligent and hardworking

1 to get right to the heart of the matter (idiom)

1 lit. to furl up flags and umbrellas (idiom)

2 fig. to stop what one is doing

1 Knowledge comes from books and from experience of the world. (idiom)

2 Learn as much as you can and do all you can.