| 例句 |
breeding groundsnounpl. of breeding ground a place or environment that favors the development of somethingunwashed skin is a breeding ground for bacteria hotbeds, hothouses, nests, nidi(or niduses), nurseries, seedbeds, seminaries cruciblesbases, capitals, centers, cores, cynosures, eyes, foci(also focuses), hearts, hubs, meccas, nuclei(also nucleuses), seatsfoci(also focuses), headquarters |