Two-tone keying
[电] 二音按键
🧩 词语组成解析
two
[tu]
n. 两个;两个东西;两点钟;一对;
adj. 两个的;我同;
num. 两个;第二;二;
tone
[təun]
n. [语]声调，语调;[画]色调，色泽，明暗;[乐]乐音，全音，全音程;[医]（正常的）健康状态;
vt. 使更健壮;定调;使变调子;[摄影术]给…上色;
vi. 带有某种腔调;呈现某种色彩;（颜色）调和（与 with 连用）;
[计] 键控
🗣️ 情景例句
Oh, really?
噢， 是吗？
Desperate diseases must have desperate cures.
毒病要用毒药医。
Did you know he was having an affair?
你知道他有外遇了吗？