单词	化生--转变
释义	转变；化生metaplasia
随便看	double sugar double summation double summer time double-summit double sunspot cycle double sunspot solar double superheterodyne double superphosphate double superphosphate（同 concentrated superphosphate） double supervision double surname double suspension double suspension {fr.} double swing door double switch double switch turnout double swivel hook double system double system of ignition double system recording double-system sound recording doublet double table double tackle doublet aerial