单词	Down disease
释义	Down disease 唐氏病
随便看	?-helix helix accelerator helixact helix agitator helix-alike fins helix angle helix-angle helix angle at reference cylinder Helix angle deviations helix angle of gash helix angle of thread helix angle of tooth helix angles helix angle tester helix antenna Helixanthera Helixanthera coccinea Helixanthera guangxiensis Helixanthera parasitica Helixanthera parasitica Lour helixanthera pierrei helixanthera sampsoni Helixanthera sampsoniHanceDanser Helixanthera scoriarum Helixanthera terrestris