leg germ

例句：

1. 1. The doctor advised himto exercise regularly to maintain his health.
   医生建议他定期锻炼以保持健康。
2. 2. The scientistconducted experiments on the leg germs ofdifferent species of animals.
   科学家对不同物种动物的腿根部进行了实验。
3. 3. The researcherfocused on studying the leg germs ofbacteria for their potential applications in medicine.
   研究者专注于研究细菌的腿根部，以探索其在医学上的潜在应用。