Concanvalin a
[机] 刀豆球蛋白A
🗣️ 情景例句
Help yourself to celery and carrots and other vegetables.
请你们自己盛芹菜， 胡萝卜 和其他蔬菜。
Are there any questions?
还有什么问题吗？
Number 13 buses run much more frequently, don't they?
13路车跑得更勤，是不是？