He said his brother had a bruised eye, is missing an upper canine tooth and has cigarette-burn marks on the backs of his ears.

他说他的兄弟有一只擦伤的眼睛，掉了一颗上面的犬齿和在他的耳朵背面有香烟烧伤的印记。

youdao

The researchers delivered short electrical pulses to either the upper left canine tooth (the pointy one) or the lower left canine tooth in the subjects.

科研人员给上颚的左犬齿（比较尖的那颗）或者是下颚的左犬齿注射一个短的电脉冲。

youdao

The training to open their mouths was key to staff spotting a rotting upper left canine bothering Arktos last year and a damaged tooth that troubled Walker in 2011.

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