“投影机”例句

单词 投影机 例句 DEFINITIVE EXAMPLES 权威例句〔opaque projector〕A projector used to view images of nontransparent materials, such as printed sheets or drawings.实物投影机：用来投射不透明物品，如印刷纸或图画等的投影机美国传统〔overhead〕An overhead proje...