你的肠道里的细菌使你对某些疾病很敏感，或者肥胖，或者可能不敏感，这些都是细菌的原因。
The bacteria in your gut may make you susceptible to certain diseases, to obesity, or they may make you less susceptible. Bacteria matter.
令人满意的是硬膜外麻醉仅仅使痛觉不敏感，但是孕妇仍然保持清醒，可以在分娩过程中起到积极的作用。
Ideally, the epidural only dulls the pain, and women remain alert and can still play an active role in labor.
令人满意的是硬膜外麻醉仅仅使痛觉不敏感，但是孕妇仍然保持清醒，可以在分娩过程中起到积极的作用。
Ideally, the epidural only dulls the pain, and women remain alert and can still play an active role in labor.
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