Optical path difference
[化] 光程差
🧩 词语组成解析
path
[pæθ]
n. 小路，路;路线，路程;〈比喻〉（人生的）道路;（思想，行为，生活的）途径;
🗣️ 情景例句
The woods are lovely, dark and deep,
林子迷人 漆黑而深邃
I enjoyed the movie very much. I wish I had read the book from which it was made.
电影不错，我希望我读过原著。[wish + 主语 = 过去完成时 = 愿望之事在wish以前发生。]
There is no quicker method of disposing of patients than by giving them what they are asking for,
病人要什么就给什么，没有比这样处理病人更快的方法了。