NO PAIN NO MUSCLES 一分耕耘一份肌肉
The wall of vas deferens has no muscles.
输精管管壁有一层上皮细胞,但无肌细胞;
No hair, no teeth, no muscles, no job, no car. If things don't improve, there is no way I'm gonna get a date for this weekend.
没头发,没牙齿,没肌肉,没工作,没车子。要是再这么下去,这个周末可定没得约会了。
Their skulls show they had no chewing muscles.
它们的头骨显示它们没有咀嚼肌。
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