4,500 个单词和短语 · 21 个主题

词汇

double

v.L2 进阶B1

翻倍;使加倍

英文释义 to become twice as large in amount, or make something reach twice its amount

作答后解锁

在休闲、新排位或单人练习中遇到这个词并作答,就能解锁完整词条。