[luò hòu]
(落在后面) fall behind; lag behind
									
										behind the times
										落后于时代
									
									
									
										Be modest and prudent, never lag behind!
										谦虚谨慎, 永不落后!
									
									
									
										My thinking always lags behind reality.
										我的思想老落后于现实。
									
									
									
										The home team trailed by one point at half time.
										上半场主队落后一分。
									
									(不先进) backward
									
										backward in technique
										技术落后
									
									
									
										put an end to the backwardness of the mountainous areas
										改变山区落后面貌