剪牙要剪成平齿，不伤及牙龈，防止细菌感染；
Cut cut teeth to cut teeth and gums, don't hurt, prevent bacteria infections;
我们认为黏液是保护你的健康并防止细菌感染的一项重要的身体机制。
We think this is a very important mechanism in your body to keep you healthy and to protect you from bacterial infection.
只要把蛆放在严重的伤口上，它们便会大块朵颐细菌和坏死的组织。它们可以加快伤口愈合并防止感染。
Placed on serious wounds, maggots mimic their "wild" lifestyle and munch on bacteria and dead tissue, stimulating healing and helping to prevent infection.
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