Deltic
abbr. delay line time compression 延迟线路时间压缩（装置）
🗣️ 情景例句
That's irrelevant.
那不相干。
He who never was sick dies the first.
小病不生，一病致命。
Good afternoon, class! Who's on duty today?
同学们，下午好！今天谁值日？