why heart rate affect the arterial pressure

Why Mammals with a high rate of respiration need to have a high heart rate. 麻烦高手翻译一个句子~~~Heart rate variability I cannot tell why this heart languishes in silence. Why is your heart _______(break/broke/broken) mandate rate 有人知道JTL的Why Did You Deep In My Heart这首歌么,再那里下载啊 Why you always let me find that my love isn't in your heart ？ 翻译！Lovs doesn't ask why,it speaks from the heart and never explains. If you don't love me, why did you steal my heart? 什么意思 Why？？！