词汇	-theca
释义	-theca 膜,鞘
随便看	period interval code period in the train diagram Period,Intraoperative period inventory period in which work on farms was done by hand period ion exchangecapacity period irradiance periodisation periodisations periodism periodismo periodista periodizao Period,Neurologic Refractory periodnntitis period noise period novel period-n-tupling bifurcation period number periodo periodo- periodoatal pus pocket periodobenzene periodocarbon periodo carbon