Pectinic acid
[化] 果胶酯酸
🧩 词语组成解析
🗣️ 情景例句
I'll bicycle down to the village and get them.
我骑脚踏车去镇上拿。
We'd better not go out tomorrow, son.
孩子，我们明天最好不要出去。
but by now the Thermopylae was over five hundred miles ahead.
但此时，“赛姆皮雷”号早已在500多英里之遥了。