Photocolorimetry
光比色法, 光色度学
🗣️ 情景例句
How do you feel about the last part of the letter?
你对最后一部分有什么看法呢？
Marvellous.
妙极了。
Will you come through to the back, please?
请跟我到后面去。……你何不试试这套呢？