Y operator
[计] Y算子
🧩 词语组成解析
🗣️ 情景例句
555-9470…and it's busy….
555-9470……还是忙音 ……
Continual failure drove him to suicide.
不断的失败逼得他自杀。
Betty and Susan are talking on the telephone.
贝蒂和苏珊正在通电话。