Chromometry
比色法
🗣️ 情景例句
How can I ever repay you for your kindness?
我该怎样才能报答你对我的好意呢？
To be afraid of getting a ticket
害怕得到交通罚款单
I'm sorry, but I don't really have much choice.
对不起，我实在没有什么选择余地。