落后 luò hòu to fall behindto lag (in technology etc)backwardto retrogress Example sentences 这里的讯息太落后了。 zhèlǐ de xùnxī tài luòhòu le. The message here is too far behind 他成绩严重落后大家。 tā chéngjì yánzhòng luòhòu dàjiā. His scores seriously fall behind everyone