How many Avocet there?

究竟有几多只呢？

But Colonel-General Kurt Zeitzler insisted that the offensive go ahead and he became the main avocet of the offensive.

但是主战特·蔡兹勒将坚持对斯克发动进攻。

An avocet has a long, strongly upcurved bill which contains a complex and highly specialized system of lamellae capable of filtering out small food items.

找了一下网路资料，似乎也没有讨论弯原因文献，可能有很久以前，不过就不太好找了。