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
When was it built?
它是什么时候建造的？
The cat followed her everywhere she went.
无论她到哪，那只猫都跟着她。
Excuse me. Where's the toilet, please?
请问洗手间在哪？