And Shared joy is double joy.

分享的欢喜是加倍的欢喜。

youdao

Friendship can make double joy, make grief in half.

友情能够使喜悦加倍，能使悲伤减半。

youdao

Shared joy is double joy; Shared sorrow is half sorrow.

分享快乐，快乐翻倍；分担痛苦，痛苦减半。

youdao

Jelavic finally got the move he wanted and, in a day of double joy for the player, he was named in Croatia coach Slaven Bilic's 23-man squad for the Euro 2012 Group F qualifiers against Latvia in Riga on 3 September and Greece in Zagreb four days later.

BBC: Rangers sign Rapid Vienna's Nikica Jelavic for ?4m