Allantoic acid
[化] 尿囊酸; 二脲基乙酸\\n[医] 尿囊酸
🧩 词语组成解析
a. [动]尿囊的,尿囊内的,有尿囊的
🗣️ 情景例句
Oh, there's our table and benches.
哦， 那是我们的桌子和长板凳。
The first step is the only difficulty.
万事起头难。
What on earth has happened to trouble you so?
到底发生什么事让您如此发愁？