单词学习：providentially 副词
providentially
/ˌprɒvɪˈdenʃəli/
幸运地；凑巧地；天意地；神助地
Providentially, Mr. Gu arrived just in time to help the students solve the difficult problem.
幸运的是，顾老师及时赶到，帮助学生们解决了这个难题。
单词卡片
卡片已就绪
