疲劳、易怒、精神不振是脱水引起的常见症状。
Dehydration is a common cause of feeling tired, cranky, and depressed.
第二组人学着把自己的身体视为“有洞察力的顾问”，会留意到精神不振等细微迹象，将其视为线索：“我学会了区分疲劳和筋疲力尽。”
A second group learnt to treat their bodies as "insightful advisers", heeding even subtle signs such as low energy as cues: "I learnt to differentiate between being tired and drained."
他们脸色苍白，精神不振，头发脏乱，两颊深陷。
They looked pale and unhealthy, with unwashed hair and sunken cheeks.
感染了这个，雀类就会昏昏欲睡，精神不振，还伴随着严重的结膜炎症，也就是红眼病。
But they are susceptible to infection with something called Mycoplasma gallisepticum, a bug that leaves them lethargic and sporting a bad case of conjunctivitis, otherwise known as pinkeye.
近视，偏食一物，寒食不断，面色萎黄，或有虫斑，精神不振，记忆减退，舌淡脉弱，乃气血不足之象。
Myopia, indulgence of certain food, preference to cold food, sallow complexion or with insect spots, lassitude, poor memory, pale tongue, weak pulse indicating insufficiency of Qi and blood.
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