单词	differential-screw jack
释义	differential-screw jack 差动千斤顶
随便看	private community health service institutions private community health system private community heath service private companies Private companies sometimes have more leeway private company Private Company limited by shares private company share private company shares private comparison protoeol private compiling history private complainant private component private computer private computerized branch exchange private concern private concerns private conference private confidential private construction enterprises private constructor private consultation private consumer private consumption private consumption and investment moderated