Stereocenter
立构(规正)中心
🗣️ 情景例句
I have ideal blood pressure. A perfect heart.
我血压正常得很 ，心脏也很好。
Kinsman helps kinsman, but woe to him that hath nothing.
亲帮亲，邻帮邻，无亲无助你倒霉。
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。