germ warfare

例句：

1. 1. The government has been accused of using germ warfare against the population.
   政府被指控使用细菌战对抗人民。
2. 2.The scientist warned that biowarfare could be a major threat to global security.
   科学家警告说，生物战可能对全球安全构成重大威胁。
3. 3. The conflict between nations has led to the use of germ warfare as a weapon of choice.
   国家间的冲突导致了细菌战作为首选武器的使用。