Preamp
n. （无线电）前置放大器
🗣️ 情景例句
Happy langings!
一路顺风！
I get up at 8 every morning.
每天早上我8点起床。
One moring she was working at her desk in the library when a boy came in.
一天早上，她正在图书馆里伏案工作，这时，一个男孩走进来。