Question

充充数［凑凑数］　chōnɡ chōnɡ shù

Accepted Answer

a thing or person usu. of little value, that supplies a deficiency, fills a gap, etc.：

正面	充充数［凑凑数］　chōnɡ chōnɡ shù
背面	a thing or person usu. of little value, that supplies a deficiency, fills a gap, etc.：

充充数［凑凑数］ Chōnɡ Chōnɡ Shù Thing Person Usu Supplies Deficiency