Photicity
光化率
🗣️ 情景例句
Tell me about your book.
谈谈你的书吧。
A good, satisfying job can be the product of years of education.
一个理想而令人满意的工作，是在接受几年的教育之下才能获得的。
'Whatever are you doing up here Bill?' asked the vicar in surprise.
“你究竟在这上面干什么，比尔？”牧师惊讶地问。