chemoattractant

例句：

1. 1. The researchers found that certain chemicals could act as chemoattractants for bacteria.
   研究人员发现某些化学物质可以作为细菌的化学引诱剂。
2. 2. The experiment was designed to test the effectiveness of a new chemoattractant on mosquitoes.
   这个实验旨在测试一种新的化学引诱剂对蚊子的效果。
3. 3. The study suggests that the use of chemoattractants could be harmful to the environment.
   该研究表明，使用化学引诱剂可能对环境有害。