Underfrequency
降低了的频率, 最低的频率, 低于额定频率
🗣️ 情景例句
Can you weigh this for me?
你能帮我称称这（包裹）吗？
Nothing so bad but might be a blessing.
塞翁失马，焉知非福。
The fax has greatly changed office work, especially in China.
特别是在中国，传真机大大地改变了办公室的工作。