single adj.单一的;单个的;特指某人或某物;单身的;单人的;单程的n.单程票;单曲;单人房间;单身者;一元纸币;(网球)单打比赛;(板球)一分打;(棒球)一垒打v.挑选(一个)
双语例句
Fractions of the phosphor are easily lost. 部分磷光体容易丢失。
For instance, the phosphor on a CRT screen needs to be constantly reactivated by an electron beam in order to remain illuminated. 例如,阴极射线管荧光屏上的磷光体为了保持它激发光状态,需要用电子束不断地再激励。