要想彻底消灭蚊子，光用杀虫剂是不够的。

Yào xiǎng chèdǐ xiāomiè wénzi, guāng yòng shāchóngjì shì bùgòu de.

If we want to completely get rid of mosquitoes, just using insecticide is not enough.

科学家一直在研究怎样消灭这种病毒。

Kēxuéjiā yìzhí zài yánjiū zěnyàng xiāomiè zhè zhǒng bìngdú.

Scientists have been studying how to eliminate this kind of virus.