Polaristrobometer
偏振计, 旋光计
🗣️ 情景例句
the other night when I was trying on my new clothes.
也就是我试新衣服的那天晚上。
A friend in need is a friend indeed.
患难朋友才是真朋友。
Do you often have sports at school?
你在学校经常参加体育活动吗？