词汇	sample rack
释义	sample rack n.试样架
随便看	labor under difficulties in conversation labor under mass supervision labor union labor-union labor union and strike theory Labor Union culture labor union expenditure labor union function labor unionist labor union management labor union of enterprise labor union of higher schools Labor union of high school Labor union of the university labor union organization labor unions labor union system labor union work labor unit Labor unmarrieal person labor unrest labor up the hillside labor usage variance labor-using technology labor utilization