Your correspondent 's father is a solidly intermediate computer user .
笔者的父亲可以认真地算作一个中级计算机使用者。
The level was usually quite high upper intermediate or advanced .
所练习的水平也是相当地高，一般可以达到中级以上甚至高级水平。
Grey indicates high clouds , and brown indicates clouds at intermediate altitudes
灰色表示高空云层，而褐色则表示中海拔云层。
Aniline , according to the u.s. environmental protection agency , is an oily but colorless and water soluble chemical intermediate that is a probable carcinogen .
