这些螺旋状的脉管是香蕉植物茎的一部分。
研究分析了大量的肿瘤脉管系统或血管、剖面的样本数。
The study analyzed the largest number of samples to date in tumor vasculature, or blood vessel, profiling.
一周坚持三次半小时以上的运动,每天笑15分钟,这样会对人们的脉管体统大有裨益。
Thirty minutes of exercise three times a week, and 15 minutes of laughter on a daily basis is probably good for the vascular system.
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