2. a very getatable man; both oil and coal are there but not in getatable locations. 一个非常容易接近的人;这儿有石油和煤,但都不在可以开采的位置。
3. What " efficiency " points to is right inside certain period getatable resource (person, money, content) use rate effectively. "效率"指的是在一定时期内对可获得的资源(人,财,物)的有效利用程度。