Virefringence
双折射性
🗣️ 情景例句
Chocolate, too?
也是巧克力的？
A good teacher should always avoid embarrassing his students.
一位好的教师无论何时都应该避免使学生感到难堪。
When you have found a building in which to start your school.
你找到开办学校的楼房后