词汇	had your hat in the ring
释义	had your hat in the ring v.宣布参加竞赛
随便看	different drummer Different drums make various tempos Different drying methods different ductile shear deformatoin different eco-genotypes Different ecological area Different ecological areas Different ecological conditions different ecological region Different ecological regions different ecological type different ecological zone different ecological zones Different ecologic zones different ecology recovery and reconstruction different economic policies different economic thought on clustering different economy mies Different ecosystems different ecotope different ecotypes Different edible methods different edition different educated person different education