零打碎敲　

◎ 零打碎敲 língdǎ-suìqiāo

[adopt a piecemeal approach;do sth.bit by bit,off and on;act by piecemeal] 零零碎碎、斷斷續(xù)續(xù)地做事

專門偷偷摸摸干這零打碎敲的勾當(dāng)