Photoelasticity
n. 光彈性(效應)\\n[化] 光彈性
??? 情景例句
I could almost touch it.
我幾乎可以摸到它。
I know the boy whose father is a manager.
我知道那個男孩的父親是經理。
The weather was very cold, and many people were ill.
天氣非常冷，很多人生了病。