Bell'sbelln.钟；铃；门铃；钟声；钟状物vt.敲钟；使象钟状地张开vi.使呈钟状；张开bellmouth orifice喇叭孔bell centre punch钟形中心冲孔器bell type furnace罩式炉Bell Data Network贝尔数据网bellmouth chamber钟形室Bell Laboratories贝尔实验室Bell's palsy testbell-jar counter钟罩型记录片类器Bell rs phenomenon贝尔氏现象bell-shaped game钟形对策