treatment"治疗，对待"，它的形容词是:treated
treatment没有形容词形式
例句
1.
Only time will tell if the treatment has been successful.
只有时间才能证明这种疗法是否成功。
2.
There are various treatments available for this condition.
对这种病情有各种疗法。
3.
There is considerable disagreement over the safety of the treatment.
这种疗法是否安全争论很大。
