Because of its late subsidence, the different landforms in the south and north parts were unified into a simple depression, thus the late sedimentary formations were formed.

第三阶段晚白垩世拗陷回返，结束了南北分带的地貌，形成了统一的简单洼地，接受了拗陷末期的沉积。

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Plus, the genetics of depression is not as simple as something like eye color.

另外，抑郁的基因可不像决定眼睛颜色的基因那么简单。

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Depression causes disordered thinking and judgment, and can keep you from functioning and doing simple everyday things.

意志消沉导致思维混乱、丧失判断力，还可能使你无法从事简单的日常活动。

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"My two demons are real simple, drugs and depression, " Budden told the Combat Jack radio show in December.

CNN: Hip-hop highs: Long on lyrics, short on rehab

Overall then there is good evidence that several simple exercises increase happiness and decrease depression.

BBC: NEWS | Programmes | Happiness Formula | Staying happier for longer