Hpa
abbr. 高功率放大器（high-power amplifier）
🗣️ 情景例句
Hi, Susan.
嗨， Susan。
I wonder what makes you do that.
我不知道是什么使你做那件事。
People should be ready to go to prison for their beliefs, but they should never take up arms to fight.
为了信仰，人民应该准备去蹲监狱，但决不应该拿起武器去斗争。