Photohalide
感光性卤化物
🗣️ 情景例句
The grass. The trees. The fresh air.
草地， 树木， 新鲜空气。
Besides the required courses, I'm taking an elective in the Lab Science.
除必修科目外，选修科目我选了实验科学。
As long as all was still, the pen drew a straight line,
只要一切都是静止的，笔就会划出一条直线；