·2,447,543篇论文数据，部分数据来源于NoteExpress
The device created is based on the idea that "time's arrow, " pointing forward, cannot bend over backwards to undo events that have already occurred.
这个装置是基于单向的“时间线”制造的，即过去已经发生的事不能消除。
youdao
应用推荐
模块上移
模块下移
不移动