Untread
vt. 返回, 折回, 退回
🗣️ 情景例句
Youth boredom is the main culprit behind youth crime.
年轻人的无聊是青少年犯罪最大原因。
Had so much fun
玩得开心
It can copy a long report and sort the copies and pin them together.
现它可以复印长篇的报告，把复印件分类，并装订起来。