riddlerid•dle /'rɪdl/

n C

1. 谜，谜语

• The riddle is so easy that I solved it in five minutes. 那个谜语很简单，我五分钟内就猜出来了。

2. 喻 像谜一样难以捉摸的人；莫名其妙的事情

• What he did is still a riddle to us. 他做过什么对我们来说还是一个谜。

3. (筛谷物、泥土、沙石等的)粗筛，格筛