Radio-frequency
n. 射频, 无线电频率
📖 牛津释义
radio-frequency
n frequency of electromagnetic waves used in radio and TV transmission, between 10kilocycles per second and 3000000 megacycles per second射频, 无线电频率（无线电传递和电视发送所用电磁波的频率, 其范围从每秒10千周到3000000兆周之间）.
🧩 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
🗣️ 情景例句
When he came to the States five years ago, he had only forty dollars in his pocket.
五年前他来美国时，口袋里只有40美元。
Can you give me a hand?
你能帮个忙吗？
He called out to the children and threw the ball back to the bank.
他大声叫着那些孩子，把球扔回到岸上。