1 low

2 beneath

3 to lower (one's head)

4 to let droop

5 to hang down

6 to incline

1 low pitch

2 quiet (voice)

3 subdued

4 low-key

5 low-profile

1 to raise

2 to increase

3 to improve

1 tallest

2 highest

3 supreme (court etc)

1 surname Gao

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

1 in a whisper

2 in a low voice (idiom)