D-ala
[医][=delta aminolevulinic acid]δ-氨基γ-戊酮酸，δ-氨基乙酰丙酸
🧩 词语组成解析
n. 翼, 翅\\n[化] 丙氨酸
🗣️ 情景例句
Where do I register for classes?
我在哪儿登记我上的课？
Friends are lost by calling often and calling seldom.
交往过密过疏，都会失去朋友。
It suddenly occurred to one of the workers to open up the box.
突然一个工人想到打开箱子看看。