return or cause to return to reality after a period of daydreaming or excitement
使（幻想或兴奋之后）回到现实；回到现实
(humorous)one had (or did you have?) an orgasm
(幽默)达到了性高潮（或达到性高潮了吗？）
(of a hunted animal) hide in an underground burrow
（猎物）逃入地洞
(informal)very strange
(非正式)像是来自外星的，极怪异的
they looked like nothing on earth.
他们像是来自外星。
Among all the possibilities
究竟：包括所有可能性的情况下
Why on earth did you put on that outfit?
你到底为什么要穿上这套服装?