Gb	Eng
藉助卫星可观察到部队的调动.	Troop movements can be observed from space by a satellite.
那几笔款子加起来总数很可观。	The sums reached to a considerable total.
他带我到他的藏书室，里面的藏书虽然杂乱无章，数量却相当可观。	He took me into his library, a littery but considerable collection.