able to be used or to operate on both sides 雙面:可在兩側使用或操作 double-sided sticky tape 雙面膠帶 Automatic double-sided printing saves paper. 自動雙面打印節省紙張。 I use this double-sided scanner to scan in paper documents quickly. 我用這台雙面掃描儀快速掃描紙質文件。 a double-sided poster 雙面海報