1 to raise

2 to increase

3 to improve

1 tallest

2 highest

3 supreme (court etc)

1 surname Duan

1 surname Gao

1 senior high school

2 abbr. for 高級中學|高级中学[gāo jí zhōng xué]

1 to split sth into two (idiom)

1 lit. to fight it out with sb to see who is best (idiom)

2 fig. to cross swords with

3 to lock horns

1 can't recognize tall or short (idiom); doesn't know what's what

1 to feel unconcerned and let matters rest (idiom)

1 man seeks his way up just as water seeks its way down (idiom)

2 one should constantly strive to make progress