Lightpositive
正光电导性
🗣️ 情景例句
I just retired. Had my own company.
我刚退休。我原来开一家公司。
Do you often study history on Saturday?
你常常在星期六学历史吗？
Hasn't Mary told you?She invited Charlotte and me to dinner this evening.
玛丽没有告诉你吗？她邀请我和夏洛特今晚去吃饭。