Backward pointer
[计] 反向指针, 反向指示字
🧩 词语组成解析
pointer
['pɔintə]
n. 建议;线索;教鞭;（测量仪器上的）指针;
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
How long will it take you to have it counted?
你要多少天才能把它计算好？
Li Lei.
李磊。