Sensitometry
感光学
🗣️ 情景例句
OK.
好。
My roommate's having a party.
我的室友安排了一个聚会。
The remains of plants and animals that lived on land are much more rarely preserved, for there is seldom anything to cover them over.
曾在陆地上生活过的动植物的遗体被保存下来的更为罕见，因为陆地上几乎没有什么东西覆盖它们。