This paper introduces mechanism, research methods and main results about microbubble dray reduction.该文介绍了微气泡降阻机理 、 研究方法和重要结论.A dray is a type of horse - drawn vehicle.雪橇是一种马拉的交通工具.She stood doggedly in checkout lines; sh...
He had an irascible temper.他脾气暴躁。Laziness makes people irascible, and Xiangzi now grew pugnacious.懒,能使人脾气大.祥子现在知道怎样对人瞪眼.He was an irascible man.他是个脾气暴躁的人.He had to deal with holly bushes, nettles, hawthorns, eglantines ,...