English translation of 时而
⇒ 电脑时而出故障。(Diànnǎo shí'ér chū gùzhàng.)
The computer sometimes plays up.
⇒ 他精神失常了,时而大哭,时而大笑。(Tā jīngshén shīcháng le, shí'ér dà kū, shí'ér dà xiào.)
He's psychologically unbalanced — one moment he's in floods of tears, the next he's laughing uncontrollably.
Translation of 时而 from the Collins Chinese to English Dictionary