PVC Casement window sereies:it can be opened large area,using the high quality hardware,opened nimbly,safe and reliable.是什么意思_PVC Casement window sereies:it can be opened large area,using the high quality hardware,opened nimbly,safe and reliable.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句