幸福

happiness; bliss; felicity; well-being; joy; blessedness; sunshine; welfare; happy; blissful; beatific; blessed

突然

suddenly; rudely; cold; overnight; sharply; bang; short; dead; nowhere; unceremoniously; sudden; rude; abrupt; dramatic; unexpected; lightning; steep; snap; untimely; unannounced; precipitous; sneak; galvanic; drastic; convulsive; jerky; hurried; all of a sudden; out of the blue; all at once; with a jump; with a bang; apropos of; in your tracks; in a hurry; just like that