Caseanic acid
[化] 酪烷酸\\n[医] 酪烷酸
🧩 词语组成解析
🗣️ 情景例句
He emphasized that Marxism was scientific truth.
他指出马克思主义是科学的真理。
Familiar paths and old friends are the best.
熟路好遵循，老友最可珍。
She's sitting under the tree.
她正在树荫下坐着。