Xa
abbr. 辅助放大器（Auxiliary Amplifier）
🗣️ 情景例句
Well, please sit down
嗯， 请坐下来
Will you please spell his name for me?
请你把他的名字拼给我好吗？
We should learn the value of money and learn how many hours' work has to be done before we can buy something.
我们应该认识到钱的价值，知道要干多少小时的活，我们才能买某件物品。