Secondary(optical)axis
[化] 副轴; 副光轴
🗣️ 情景例句
What was your GPA last semester?
你上个学期的平均成绩是多少？
That's the best way to spend your holidays.
那是打法休假最明智的方法。
When he died at the age of eighty,
他80岁那年死去时，