1 to change (train or plane)

2 transfer

3 correspondence

1 low pitch

2 quiet (voice)

3 subdued

4 low-key

5 low-profile

1 to emphasize (a statement)

2 to stress

1 air conditioning

2 air conditioner (including units that have a heating mode)

3 classifier: 台 tái

1 to transfer

2 to move (troops or cadres)

3 to investigate

4 to enquire into

5 accent

6 view

7 argument

8 key (in music)

9 mode (music)

10 tune

11 tone

12 melody

1 to sing the high part

2 to speak fine sounding but empty words (idiom)

1 monotonous

2 dull

3 tedious (idiom)

1 to change one's mind (idiom)

1 lit. the sky shakes and the ground revolves

2 momentous changes are underway (idiom)

1 the sky spins, the earth goes round (idiom); giddy with one's head spinning

2 fig. huge changes in the world