Polycysteine
[化] 聚胱氨酸
🗣️ 情景例句
on our community.
给我们的社区。
A good name keeps its luster in the dark.
良好的名声在黑暗中也能闪闪发光。
You don't have many apples, Jim, says Li Lei.
“你的苹果不多，吉姆，”李垒说