Rainbow
例子
After the rain, a beautiful rainbow appeared over the hills.
雨后，美丽的彩虹出现在山丘上。
02
海市蜃楼, 幻想
an unrealistic or fleeting hope, often one unlikely to be fulfilled
例子
The plan was a rainbow, exciting but improbable.
这个计划像一道彩虹，令人兴奋但不太可能实现。
