But watch out for a duck I call Sally.

不过请注意一只被我叫做萨莉的鸭子。

youdao

The most fun here is at the duck pond with all the ducks and geese. But watch out for a duck I call Sally.

在这里最大的乐趣是在鸭塘旁边和鸭、鹅在一起。不过请注意一只被我叫做萨莉的鸭子。

youdao

The concept behind duck typing, also known as late binding, is pretty simple; if an object responds to all the methods a function is expected to call, that object can be passed to the function.

Duck typing背后的概念非常简单，就是所谓的迟绑定；如果对象具有某个函数希望调用的所有方法，就可以将这个对象传递给该函数。

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Hong Kong is the latest port of call for the duck.

CNN: Fowl play? Giant rubber duck drowns in Hong Kong

Some might call it a duck.

BBC: May: A month of goodbyes

This will come just as a lame-duck Congress is getting ready to call it a year and a session.

FORBES: Magazine Article