Contract relax 收缩椝沙郏 ; 缩椝沙郏
By this time, the heart's electrical signal has passed from the atria into the ventricles, so while the atria relax, the ventricles contract.
这个时候,心脏发出的电信号从心房传到心室,所以当心房放松时,心室就收缩。
It takes diligence to identify your pelvic floor muscles and learn how to contract and relax them. Here are some Pointers.
找到盆底肌的位置,学会如何收缩和放松肌肉,不断地练习让自己熟练掌握这一技巧。
Researchers said: 'Once the ink on the marriage contract dries up, they relax the control they had on their weight and appearance.'
研究者说,“结婚证上的签字刚刚晾干,夫妻俩就不再强调要保持体重和外表了。”
It has a very well-developed muscular tissue and its function is to contract and relax, contract and relax.
该肌肉组织非常发达,用来使心脏收缩,放松,收缩,放松
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