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1. （多用于疑问句、否定句和表示条件和比较的附属从句）在任何时候；从来；至今
   If you ever see George, give him my kind regards.

   如果你见到乔治，请代我向他致以亲切的问候。

   She was happier than she had ever been.

   她比以前任何时候都更高兴。

   He is one of the very best men I have ever met.

   他是我遇见的最好的人之一。

   No such person ever existed.

   这样的人从来没有存在过。

   Have you ever been to London?

   你到过伦敦吗？

2. 永远，始终；总是
   He is ever ready to help you.

   他总是乐意帮助你的。

3. （用于疑问副词或代词之后，加强语气）究竟，到底
   Who ever can it be?

   那究竟会是谁呢？

   What ever put that idea in your head?

   到底是什么使你想出那个主意的？

4. 【美】【口】（用于加强感叹语气）非常
   Was she ever tired!

   她累极了！

adv.

1. [usu. with neg. or in questions] at any time.
   ▸used in comparisons for emphasis.
2. at all times; always.
3. increasingly; constantly.
4. used for emphasis in questions expressing astonishment or outrage.