If you are experiencing symptoms of depression, consulting a therapist is highly recommended.

depression 由前缀 de-（表示"向下"）和词根 press（压）以及名词后缀 -ion 组成，字面意思是"向下压的状态"，引申为"抑郁、消沉"的意思。在医学上特指"抑郁症"这种心理疾病。