gēng / huàn / diàn / jiě / diàn / róng / hòu / zhè / tái / lǎo / yīn / xiǎng / de / shēng / yīn / huī / fù / le / zhèng / cháng

更换电解电容后，这台老音响的声音恢复了正常。

After the electrolytic capacitors were replaced, the old stereo's sound returned to normal.