/wen'evə(r); [US] hwen-; hwɛn`ɛvɚ/
conj
1 at any time, regardless of when 在任何时候; 无论何时
*I'll discuss it with you whenever you like. 你愿意什么时候我就什么时候和你商量这件事.
2 every time that; as often as 每次; 每当
*Whenever she comes, she brings a friend. 她每次来都带个朋友.
* The roof leaks whenever it rains. 每逢下雨屋顶就漏雨.
3 (idm 习语) or when`ever (infml 口) or at any time 或者任何时间
*It's not urgent we can do it next week or whenever. 不是急事--我们可以下星期做或其他时候做.

interrog adv (expressing surprise 用以表示惊讶) when （究竟在）什么时候, 什么场合
*Whenever did you find time to do all that cooking? 你怎么能有时间做了这么多吃的东西?

adv, conj
every time that a particular thing happens
　Larry always blames me whenever anything goes wrong.
　Whenever I hear that tune, it makes me think of you.
at any time
　You can come and visit me whenever you want.
　a policy of using recycled paper whenever possible
spoken used as a reply to say that it does not matter what time something happens
　'I'll call you tomorrow or the day after.' ' Okay. Whenever.'