Dilactamic acid
[化] 双乳胺酸; 双乳酰胺
🧩 词语组成解析
🗣️ 情景例句
Will your family be attending the graduation ceremony?
你的家人要来参加你的毕业典礼吗？
Could I have the bill, please?
请把帐单给我好吗？
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。