Frequency-shift keying
[电] 移频按键
🧩 词语组成解析
frequency
['frikwənsi]
n. 频繁性;[数][物]频率，次数;频率分布;
fr + equ =equal,even,表示“相等，平均” + enc + y [形容词后缀] → n.屡次；次数；频率
shift
[ʃɪft]
vt.& vi. 改变;去掉;摆脱掉;换挡;
vt. 换…的衣服，更（衣）;卖，出售;[计算机]使（数据）位移;
vi. （汽车）换挡;换衣服;蒙混;自己谋生;
n. 移动，转移，转换;变迁，变化，变换，替换，更换，掉换，更易，代用;（汽车等的）变速;
[计] 键控
🗣️ 情景例句
Littering is a serious offense in some countries.
乱扔垃圾在某些国家是严重的违法。
Have you been busy with schoolwork?
学校的功课很忙吗？
Jack was an excellent tennis player. He was able to beat anybody.
竭克是个网球健将。他天下无敌。