Ustilagic acid
[化] 黑粉菌酸
🧩 词语组成解析
🗣️ 情景例句
Cooking dinner for the entire family is not so easy.
给全家人做晚餐真不是件容易的事。
Is that right?
那样对吗？
What was the population of the world in 1950?
1950年世界人口是多少？