New words：

jaw [dʒɔ:] n. 下巴；颌；下颌
panther ['pænθə] n. 黑豹；美洲豹

Sample Sentences：

The panther held a snake in its jaws.
My jaw dropped when I saw how much the meal had cost.
He has seventeen teeth in the upper jaw, and nineteen in the lower jaw.

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