她用舌头舔了一下干裂的嘴唇，试图要说话。
She passed her tongue over her cracked lips and tried to speak.
而猫不需要像狗一样弯曲舌头，它们通过较小的动量，采取更轻柔的行动：只是舔一下水的表面喝水。
Cats don't bend their tongues to drink like dogs. Cats use less momentum and a more gentle action. They just skim, or barely touch, the surface of the water to drink it.
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