leaven 'levn
GRE
释义
n. 酵母, 促使渐变的因素
vt. 使发酵, 渐变
英文释义
n. a substance used to produce fermentation in dough or a liquid
n. an influence that works subtly to lighten or modify something
词形变化
过去式: leavened 过去分词: leavened 现在分词: leavening 第三人称单数: leavens
BNC词频排名: 34,557 | 当代语料库词频排名: 25,138