He did a job in which killing was necessary, sometimes alongside underlings who stubbed out their cigarettes on prisoners' feet or roughly removed their teeth and eyes.

他的工作必须进行杀戮行为，有时他身旁的部下甚至还会把烟头踩熄在囚徒的脚板上，或是拔出他们的牙齿并挖出他们的眼睛。

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Some experts think that wisdom teeth and the appendix may be slowly on their way out — some people are already born without them — since they do sometimes cause life-threatening infections.

一些专家认为，智齿和阑尾可能正在慢慢退出，有些婴儿出生时就没有智齿和阑尾，因为它们有时候会引起威胁生命的细菌感染。

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He has a smell and the teeth that have been smashed through his snout are sharp and stick out every which way and sometimes cut my face.

他散发着一股恶臭，被碾得从鼻口部位刺出的尖牙乱糟糟的到处都是，有时会划伤我的脸。

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If left untreated, however, teeth grinding can sometimes damage the teeth or cause headaches and TMJ (temporomandibular joint) pain.

CNN: What can I do about teeth grinding?

Our summer books are books you can sink your teeth into and that sometimes bite back.

NPR: Summer Reads for Former Recess Rebels

He did a job in which killing was necessary, sometimes alongside underlings who stubbed out their cigarettes on prisoners' feet or roughly removed their teeth and eyes.

ECONOMIST: Bob Denard