easier said than done
口で言うほど簡単ではない
Ex
- It’s easier said than done : 言うは易し行うは難し(ことわざ)
- Working in foreign country is easier than done.
Reference source
- https://ejje.weblio.jp/content/It%27s+easier+said+than+done
- https://hapaeikaiwa.com/2013/08/14/「easier-said-than-done」の意味と使い方/