Radiospectrum
射频频谱
🗣️ 情景例句
Let's get in shape.
咱们去健身吧。
Went on to get his master's degree from harvard.
然后在哈佛大学取得了学士学位。
The officer unscrewed the cap and put the bottle to his nostrils.
海关官员拧开瓶盖，把瓶子放到鼻子底下。