抑扬顿挫

yì yáng dùn cuò

see 頓挫抑揚|顿挫抑扬[dun4 cuo4 yi4 yang2]

抑

yì

to restrain

扬

yáng

variant of 揚|扬[yang2]

顿

dùn

to stop

挫

cuò

obstructed