这个培训项目提高了员工对环境保护问题的意识。

The training program increased ___sensitization to environmental protection issues among staff.

接触某些食物可能会引发身体的敏感化反应，导致过敏。

Exposure to certain foods can trigger ___sensitization and cause allergic reactions.

这款麦克风经过特殊处理，提高了对高频声音的敏感度。

This microphone has undergone special treatment to enhance its ___sensitivity to high-frequency sounds.