Pharosage
光通量密度, 照度
🗣️ 情景例句
about your family background.
关于你的家庭背景的。
Do you get much rain in summer?
这里夏天雨水多吗？
I'm afraid it is quite common that people steal things from their workplace.
恐怕人们在工作场所偷东西是相当普遍的。