植物捕获光线，转换成电流，然后利用这一这能量激活催化剂，然后把水分解成氢和氧，这一过程被称为光合作用的亮循环。
Plants catch light and turn it into an electric current, then use that energy to excite catalysts that split water into hydrogen and oxygen during what is called photosynthesis' light cycle.
它们需要少量镁离子进行能量代谢，而镁离子太多的话也会作为一种麻醉剂，最后使它们死翘翘。
In small quantities, these ions are needed for energy metabolism. Too many, though, act as a narcotic that eventually kills the animal.
在这个“寻找幸福”的课堂里，我在唤醒一种叫“乐观”的能量。 我希望，至少，这样的疗方也算是良药一剂，如果这不是治疗，那我为何可怜到要来这里寻找解决中年危机的方法呢。
I summoned a senseof optimism about this ’happiness’ class and hoped that it might at least be asalve, if not a cure, for how poorly I’d been handling the approach into middleage.
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