Actinometry
n. 辐射测量学\\n[化] 曝光测定; 光能测定学; 光化线强度测定
🗣️ 情景例句
Hi, I'm Mary.
嗨，你好，我叫玛丽。
Thank you. It was very kind of you.
谢谢，您太好了。
although what impression any other civilization would thus get from us is best left unsaid.
至于其他文明行星对我们地球会有什么印象，还是不说为好。