[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