underpromise
发音
US
词形变化
underpromised
underpromises
三单
underpromises
underpromising
underpromising
现在分词
underpromised
过去式
underpromised
过去分词
释义与例句
v.
-
1.
To promise less than one expects to do.
不及物
相关短语
词源
From under- + promise.
来源：wiktionary