单词学习：vow 名词/动词
vow
/vaʊ/
誓言，誓约；郑重宣告
Mr. Gu made a solemn vow to dedicate his life to education.
顾老师郑重宣誓，将毕生奉献给教育事业。
单词卡片
卡片已就绪
