[Tu] sei bello is an Italian equivalent of 'You're beautiful', for a boyfriend. The verb 'sei' means '[you] are'. The masculine adjective 'bello' means 'beautiful, handsome'. All together, they're pronounced '[too] seh BEHL-loh'.
"Beautiful women!" in Italian is Belle donne! in Italian.
My boyfriend in handsome and he thinks I'm beautiful
Bella o bellissimo
"Beautiful sisters" in English is belle sorelle in Italian.
Beautiful gift in Italian is "bel regalo"
"Beautiful horse" in English is bel cavallo in Italian.
"Beautiful night" in English is bella notte in Italian.
"Beautiful mommy!" in English is Bella mamma! in Italian.
"Beautiful mountains!" in English is Belle montagne! in Italian.
"Beautiful walls!" in English is Bellissime mura! in Italian.
Beautiful place in Italian means "posto bello"
"Beautiful woodland!" in English is Bel bosco! in Italian.