Xa
abbr. 辅助放大器（Auxiliary Amplifier）
🗣️ 情景例句
He cheated on his wife.
他对他妻子不忠。
Do you have difficulty matching you feelings with words?
你是很难把自己的心意用言语表达吗？
This time it was the postman and he wanted me to sign for a registered letter!
这次是邮递员，他要我签收一封挂号信！