此起彼伏

cǐ qǐ bǐ fú

up here, down there (idiom); to rise and fall in succession

no sooner one subsides, the next arises; repeating continuously; occurring again and again (of applause, fires, waves, protests, conflicts, uprisings etc)

此

cǐ

this; these

起

qǐ

to rise

彼

bǐ

that

伏

fú

to lean over