v. become worse or disintegrate
v. (使)恶化
1. The condition of the building began to deteriorate after years of neglect.
这栋建筑的状况在多年的忽视后开始恶化。
2. If you don't take care of your health, it may deteriorate over time.
如果你不注意健康，身体状况可能会随着时间恶化。
3. The friendship started to deteriorate when they stopped communicating.
当他们停止沟通时，这段友谊开始恶化。