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1.canine n. 犬齿；犬科动物；犬牙
例句：Canine teeth are for piercing and killing prey, and tearing flesh.
犬齿用来咬穿、咬死猎物，还可以撕肉。
2.passerby n. 过路人；经过者
例句：The 23-year-old's screams alerted a passerby who went to her rescue.
那个23岁女孩的尖叫引来了一位过路人前去营救。
n. 方式，样式，模式，风格，时兴
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