Bcf
[医][=bacterial chemotactic factor]细菌趋化性因子
🗣️ 情景例句
You won't believe this.
你会觉得难以置信。
It's a large town.
这是一个很大的乡镇。
They also found out that bees fly a maximum distance of 3.2 kilometres between their hive and a feeding place.
他们还发现蜜蜂从蜂箱到喂食点的最大飞行距离是3。2公里。