Yes, we have done a little. But we have just started and have nothing to show you.
有,我们做了一些,但是因为我们才刚起步,并没有任何资料可以提供给你们。
After working with bees for many years, Professor Von Frisch was puzzled by something he had noticed again and again.
在和蜜蜂打了多年的交道后,冯·弗里施教授对他反复注意到的事感到迷惑。