孕妇要坐下或半卧位，背向后靠稳，或采用侧卧位，让肚子的肌肉放松下来。
Pregnant women should sit or lie down, after half a back by firm, or use side-lying position, make stomach muscles relax.
孕妇要坐下或半卧位，背向后靠稳，或采用侧卧位，让肚子的肌肉放松下来。
Pregnant women should sit or lie down, after half a back by firm, or use side-lying position, make stomach muscles relax.
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