从早到晚: from morning to night, from dawn till sundown, from sunup to sundown...
流通: to circulate, to distribute, circulation, distribution...
一般来说: generally speaking...
奇迹: miracle, miraculous, wonder, marvel...
标准: (an official) standard, norm, criterion...
痛苦: pain, suffering, painful...
悲哀: grieved, sorrowful...
讲学: to lecture (on branch of learning)...
血管: vein, artery...
壮胆: to get one’s courage up, to embolden...
