must have their body
必须有他们的身体
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Insomniacs often have trouble regulating their body temperatures, which must drop in order for sleep to occur.
身患失眠症的人通常无法调节自己的体温，而温度降不下来的话是没法入睡的。
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The Venusians aboard (Van Tassel must have recognized their license plates) invited him to explore the spacecraft and shared with him the principles for rejuvenating the human body.
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