“每次…”（可以引导时间状语从句）

I used to wear it every time I visited them.

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目前，研究人员猜测梦是大脑情感自动调节系统的组成部分，当大脑处于“掉线”状态时对情绪进行调整。 【析句】Suspect后面是that引导的宾语从句；逗号之后的现在分词短语regulating moods…作定语，解释thermostat 的意思，句末的while引导一个时间状语从句。

Now researchers suspect that dreams are part of the mind's emotional thermostat, regulating moods while the brain is “off-line”.

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而第二个when引导的从句“when two people come together for love, rather than a house, car or a good job”是描述前面的谓语“is innocent”,是时间状语从句,用于说明什么时候爱情才是纯真的,这时when译成“当……时候”。

b. This is a time when love is innocent when two people come together for love, rather than a house, car or a good job.

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