easier said than done

US /ˈiːziər sɛd ðæn dʌn/
UK /ˈiːziər sɛd ðæn dʌn/
"easier said than done" picture
1.

说起来容易做起来难

something that sounds simple but is difficult to achieve

:
Losing weight is easier said than done.
减肥说起来容易做起来难
Finding a new job quickly is easier said than done in this economy.
在这种经济形势下,快速找到新工作说起来容易做起来难