亚亚和小宝儿还小，不需要提前上生理卫生课去了解创造生命的奥秘。
The second and small treasure son is still small, don't absence in advance ascend physiology health the lesson comprehend the profound puzzle of production life.
如果你还记得从生理卫生课学到的，左心室是心的商会，推动富氧血液流动于身体。
If you remember from health class, the left ventricle is the chamber of the heart that pushes oxygen-rich blood through the body.
小梅说，在她读初中的时候，她的生理卫生老师给她们上过生理卫生课-但是他们所讲的她基本上都忘光了。
Xiao Mi said that during her junior middle school, her physicaleducation teacher gave them physiological lessons – but she doesn'tremember much of what they were taught.
他想跟她说一部他曾经在生理卫生课看过的一部影片，那是讲胎盘初期因为太过弱小，即使是借助扩音器也无法听到它的心率声。
He wants to tell her about the film he saw in health class about how the embryonic heart is too small to hear, even with amplification.
他想跟她说一部他曾经在生理卫生课看过的一部影片，那是讲胎盘初期因为太过弱小，即使是借助扩音器也无法听到它的心率声。
He wants to tell her about the film he saw in health class about how the embryonic heart is too small to hear, even with amplification.
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