这只狗的耳朵非常灵敏。

The dog's ears are very ___sensitive.

他对批评非常敏感，所以说话时要小心。

He is very ___sensitive to criticism, so be careful when speaking.

老师对学生的情绪非常敏感，总能及时给予安慰。

The teacher is very ___sensitive to students' emotions and always offers comfort in time.

这份文件涉及敏感信息，请妥善保管。

This file contains ___sensitive information, please handle it with care.