Pectinic acid
[化] 果胶酯酸
🧩 词语组成解析
🗣️ 情景例句
Good morning.
早安。
In fifty years there'll be twenty people per square yard, it is written here.
这里写着，再过五十年每平方码将要住着20人的人口密度。
This wonderful plane can carry seven passengers.
这架奇妙的飞机可以载7名乘客。