Photometering
光度测定
🗣️ 情景例句
Well, they didn't say anything for sure.
嗯， 他们没有任何确切的答覆。
Do you ever study English on Sunday?
你曾经在星期日学英文吗？
I went downstairs and sat in front of the television pretending to read.
便来到楼下坐在电视机前假装看书。