单词学习：hail 名词/动词
hail
/heɪl/
冰雹；欢呼；致敬；招呼
The students hailed Mr. Gu as their favorite teacher when he entered the classroom.
当顾老师走进教室时，学生们欢呼着称他为最喜欢的老师。
单词卡片
卡片已就绪
