Sign marker
[计] 正负号标记符
🧩 词语组成解析
marker
[mɑ:kə;'mɑ:kə,mɑ:kə]
n. 标识，标记;记号笔，阅卷人;防守队员;特征;
🗣️ 情景例句
Perhaps they'll show up. In the meantime,
也许他们会露面。在这等待期间
That's it.
对了。
It must be a D.
这一定是“D”。