Hfo
abbr. heavy fuel oil 重（燃）油; high-frequency oscillator 高频振荡器
🗣️ 情景例句
My name is Wang Feng and I'm calling to cancel plane ticket.
我叫王峰，我想取消我预定的飞机票。
To play a trick
戏弄
Following this, 60,000 Indians,including Gandhi, were put in prison.
在这之后，60，000印度人，包括甘地，都被关进监狱。