ring; ringtone; bell stroke; tintinnabulation 铃声 líng shēng - Finance Mandarin

工程

gōng chéng

engineering; an engineering project; project; undertaking; mw: 个[gè],項|项[xiàng]

变

biàn

to change; to become different; to transform; to vary; rebellion

之际

zhī jì

during; at the time of

环

huán

ring; hoop; loop; (chain) link; classifier for scores in archery etc; to surround; to encircle; to hem in

线

xiàn

thread; string; wire; line; mw: 条[tiáo],股[gǔ],根[gēn]

泉

quán

spring (small stream); mouth of a spring; coin (archaic)