这种书需要量很大.There is a great demand for such books.输血的需要量应根据血球压积来确定.The blood requirements should be determined by the hematocrit.电视机和立体声音响设备现在的需要量很大.Television sets and stereo sound sets are now in great demand....
A workman was plucked from the roof of a burning power station by a police helicopter...一名工人被警用直升机从着火电站的屋顶上救了出来。You've plucked your eyebrows at last!你终于修了眉毛！Rough hands plucked at my jacket.一双粗糙的手拽着我的上衣.Please prune...