Correct

一暴十寒

/ yī bào shí hán /
Strokes

Definition

one day's sun, ten days' frost (idiom, from Mencius); fig. to work for a bit then skimp/sporadic effort/short attention span

Example

Definition

sun for one day and chill for ten days—work hard for one day and do nothing for ten; work by fits and starts/snatches

1
Yòng
bào
shí
hán
de
fāng
方法
shì
xué
hǎo
不好
wài
外语
de
  

You can't learn a foreign language well by fits and starts.