Protopectin
n. [化]原果胶
🗣️ 情景例句
Yes, Mr. Tom. Let me check Miss Xu's schedule.
好，汤姆先生。让我查查徐小姐的日程表。
Try your friend ere you trust him.
对朋友要先考验，后信任。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？