单词学习：boom 名词/动词
boom
/buːm/
n. 繁荣，激增；隆隆声；吊杆 v. 激增，迅速发展；发出隆隆声
The online education industry experienced a significant boom during the pandemic, which allowed 顾老师 to reach students across the country.
疫情期间，在线教育行业经历了显著的增长，这让顾老师能够接触到全国各地的学生。
单词卡片
卡片已就绪
