Search the dictionary A Chinese word or character, or English Draw a character Search 2 entries. dàméigōnghécìqūyù 大湄公河次区域 Greater Mekong Subregion (GMS), area of economic cooperation between China and Vietnam dàméigōnghécìqūyù 大湄公河次區域 Greater Mekong Subregion (GMS), area of economic cooperation between China and Vietnam