While touching a bird when it is learning to fly can be detrimental to its ability to fly, it doesn't stop mother birds from feeding or caring for their chicks.
去碰一直正在学飞的小鸟会对它的飞行能力有负面影响，这不会让母鸟放弃抚养自己的小鸟。
Now, if a Bird class (say, Ostrich) implements this interface, it has to implement the Fly() behaviour unnecessarily (Ostrich doesn't fly).
现在如果一个Bird类(如Ostrich)实现了这个接口，那么它需要实现不必要的Fly()行为(Ostrich不会飞)。
She swallowed the bird to catch the spider. She swallowed the spider to catch the fly. I don't know why she swallowed the fly. Perhaps she'll die.
她吞下了鸟去抓蜘蛛。她吞下了蜘蛛去抓苍蝇。我不知道为什么她会把苍蝇吞下。她可能会死。
She swallowed the bird to catch the spider. She swallowed the spider to catch the fly. I don't know why she swallowed the fly. Perhaps she'll die.
她吞下了鸟去抓蜘蛛。她吞下了蜘蛛去抓苍蝇。我不知道为什么她会把苍蝇吞下。她可能会死。
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