「羡」慕?「羨」慕?

羨慕 admire and envy
Cherish, covet, envy: 羨慕
羨慕 [xian4mu4], v.t. & n., adore, -ration, admire, -ration, cherish (person, his talent, reputation); long for, crave, envy (luck, honor, wealth).
http://humanum.arts.cuhk.edu.hk/Lexis/Lindict/

羡, 錯體字。

In H.K應該用羡慕

都可以.
羡(一點),是簡體字.
羨(二點),是繁體字.