-Greenandyellowhavenotjoined--anewcrophasnotyetcome.;(Thegranaryisnearlyempty)butthenewcropisnotyetripe.;foodshortagebetweentwoharvests.;temporaryshortage;Thenewcropis[has]notyetcomein.;(Itwastheperiodofthespringshortage),whenlastseason'scropswerealmosteatenupandthenewoneswerenotyetripe.;shortoffoodbeforethenewharvest;Whenthecropisstillintheblade,theoldstockisalreadyconsumed.;whenthenewcropisstillinthebladeandtheoldoneisallconsumed:
Therearenotenoughtrainedyoungermenandwomenreadytotakeoverfromolderexperts.现在科技人材青黄不接。