Photechy
[医] 辐射感应性
🗣️ 情景例句
You did a good job sewing this dress, I can see that you sewed the sections in the correct order.
你这条裙子做得不错，我看得出来你是按顺序来做缝纫的。
Thank you for sending it to me.
谢谢你把它送给我。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。