Underfrequency
降低了的频率, 最低的频率, 低于额定频率
🗣️ 情景例句
For a house.
为了房子。
You can go whenever you wish.
无论何时你希望去你就能去。
Really? What's the weather like in Australia now?
真的吗？澳大利亚现在天气怎样？