1 scientific law (e.g. law of conservation of energy)

2 (in human affairs) a generalization based on observation (e.g. "power corrupts")

1 melody

2 rhythm

1 material

2 data

3 makings

4 stuff

5 classifier: 个 gè

6 classifier: 种 zhǒng

1 law

2 classifier: 条 tiáo

3 套[tào]

4 個|个[gè]

1 clear

2 distinct

3 to understand thoroughly

4 to be clear about

1 to be very clear about sth (idiom)

1 lit. not to shed a tear until one sees the coffin (idiom)

2 fig. refuse to be convinced until one is faced with grim reality

1 thousand articles, same rule (idiom); stereotyped and repetitive

2 once you've seen one, you've seen them all

1 lit. head in Wu and tail in Chu (idiom); fig. close together

2 head-to-tail

3 one thing starts where the other leaves off

1 to be strict with oneself (idiom)

2 to demand a lot of oneself