canine|canines

他的犬齿看起来很锋利，就像狗的牙齿一样。

His ___canine teeth look sharp, just like a dog's.

老虎的犬齿非常锋利，适合撕咬猎物。

The tiger's ___canines are extremely sharp, perfect for tearing prey.

狐狸是犬科动物中体型较小的成员。

The fox is a smaller member of the ___canine family.