Backward shift operator
[计] 后移算子
🧩 词语组成解析
shift
[ʃɪft]
vt.& vi. 改变;去掉;摆脱掉;换挡;
vt. 换…的衣服，更（衣）;卖，出售;[计算机]使（数据）位移;
vi. （汽车）换挡;换衣服;蒙混;自己谋生;
n. 移动，转移，转换;变迁，变化，变换，替换，更换，掉换，更易，代用;（汽车等的）变速;
🗣️ 情景例句
I never bother servicing my own car, it's too much trouble.
我从来都不自己修车的，麻烦死了。
It is a pay phone .
那是一个付费电话。
The early climbers were looking for the easiest way to the top, because the summit was the prize they sought, especially if it and never been attained before.
早期登山者所寻找的是通往山顶的最方便的途径，因为顶峰特别是前人未曾到过的顶峰 -- 才是他们寻求的目标。