例句與造句

1. Unidirectional light emitting products eye guiding devices for use in expressway tunnels ,
   視向性發(fā)光產(chǎn)品高速公路隧道內(nèi)的視線誘導(dǎo)裝置
2. It's difficult to find unidirectional light in a sentence. 用unidirectional light造句挺難的