Sistor
薄膜晶体管
🗣️ 情景例句
when Teddy Roosevelt was President.
在Teddy Roosevelt当总统的时代。
That radio's pretty loud. Could you turn it down, please?
收音机太响了，你能把声音开小一点吗？
Tie a heavy weight at the end of a long piece of string.
把一个重物拴在一根长绳子的一端，