• 倒卷，倒回(影片、录音带等)
• 跑回

Runse冰沟runv.跑；行驶；运转；运营；持续；蔓延；传播；竞选；遭遇；熔化；褪色；流n.路程；奔跑；趋向adj.熔化的；浇铸的；洄游的run-length-limited code游程长度受限码run speed regulative module运行速度调节模块run time debug symbol table[计] 运行时调试符号表run time library subroutine[计] 运行时库子程序Run ahead of one's reckoningrun-of-the-river plant河床式水电站Run-Length Texture Feature行程长度纹理特征run-length encoding system游程编码run someone through the guts折磨某人run away from one's problemsn.玉溪

1. He traces his descent back to an old norman family.
   他追踪自己的世系上溯至一个古老的诺曼家族。
2. The cathedral dates back to the Middle Ages.
   该座教堂建造的时间可上溯至中古世纪。