Ook
abbr. 通断键控；开关键控（On-Off Keying）
🗣️ 情景例句
Our fiftieth reunion?
是我们的五十年重聚？
From hearing comes wisdom; from speaking, repentance.
多听增智慧，多言生后悔。
but he will never sacrifice his freedom.
但他决不会牺牲自由。