Orsino is lovesick for Lady Olivia, but truthfully he is in love with the idea of being in love.

奥西诺为奥利维亚女士患了相思病，但事实上，他爱上了恋爱的想法。

Orsino orders her to woo Olivia for him, but Viola ends up falling in love with the Duke.

奥西诺命令她为他向奥利维亚求爱，但维奥拉最终爱上了公爵。

It kind of, it sneaks upon Orsino, cause he's listening to music at this point, and it's a melancholic tune because he does say, you know, it had a dying fall.

它悄悄降临到奥西诺身上，因为此时他正在听音乐，这是一个忧郁的曲调，他说：它有一种渐渐消沉下去的节奏。