R-f indicator
[电] 射频指示器
🧩 词语组成解析
indicator
['ɪndɪketɚ]
n. 指示器;[化]指示剂;指示者;
🗣️ 情景例句
Most people I meet have some English ability, but the ones who work hard at it really stand out from the crowd.
我遇到的多数人都会点英语，但只有那些刻苦学习的人才鹤立鸡群，给我深刻印象。
How long will it take for a letter to get to California?
你把信寄到加州要多长时间？
That's good to know.
幸好知道了这件事。