double/'dʌbl/

a. twice the usual amount, size or number

n. sth that is twice the amount or number of sth else

a. 两倍的；双的：The word “door” has a double “o”. 单词door中有两个o。

◇a double bed 双人床

n. [U; C] 两个；双：I paid double for the same shirt. 同样的衬衫，我付了双倍的钱。

音组-ouble/-ʌbl/

double; trouble