1
- at whatever time; on whatever occasion (emphasizing a lack of restriction)无论何时; 无论什么情况：
you can ask for help whenever you need it.
只要你需要可以随时求助。
1.1
- every time that每当：
the springs in the armchair creak whenever I change position.
每当我改变坐姿时, 扶手椅的弹簧就会吱吱嘎嘎作响。
- used for emphasis instead of 'when' in questions, typically expressing surprise or confusion究竟什么时候（'when'提问时的强调形式, 尤用于表示惊讶或困惑）：
whenever shall we get there?
我们究竟什么时候才能到那里?
短语
or whenever
- informal or at any time〈非正式〉或者任何时候：
if you lay eyes on him, either tonight or tomorrow or whenever, call me straight away.
今晚, 明天或者其他任何时候, 如果你看到他, 立刻给我打电话。