Redundant subexpression
[计] 冗余子表达式
🧩 词语组成解析
[计] 子表达式
🗣️ 情景例句
It's a problem, isn't it?
这确实是个问题，不是吗？
I wish I were running across an open field.
我真希望在原野奔跑。
What did you do next?
接着你做什么呢？