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单词光线电话
例句 DEFINITIVE EXAMPLES 权威例句〔patent〕In 1880 Alexander Graham Bell was granted a patent on an apparatus for signalling and communicating called a Photophone.亚历山大‧格雷厄姆‧贝尔发明了一个可用来发送和传输讯号,称为「光线电话」的装置,并于1880年获授了此装置的专利权。剑桥高阶
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My love for you always grow, with passing year.-「Eudic」  

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