大材小用
to be underemployed;great talent employed in small capacity;waste or misuse of materials or talents;waste one's talent on a petty job;assign trivial tasks to talented people
大材小用dà cái xiǎo yònɡ
比喻使用不當(dāng),造成浪費(fèi)。put fine timber to petty use, not do justice to sb.’s talents, a waste of sb.’s talent, cut blocks with a razor