词汇	burdnous
释义	burdnous 🌏沉重的
随便看	primary recipients primaryrecirculation pump primary re circulation pump primary recoil primary recombination primary record primary recorder Primary record key has changed primary recoverable oil primary recovery primary recovery rate primary recovery ship Primary Recovery Site primary recrystallization primary recrystallization texture primary rectifier primary recurrent abortion primary red cell aplasia primary reduced zone primary reduction primary reduction gear primary reduction gearbox primary redundancy vector primary reference primary reference clock