Gatedamplifier
门信号放大器
🗣️ 情景例句
The rules ought to be observed.
这些规则就予以遵守。
Four eyes see more than two.
人多识广。
I had no sooner got back to the kitchen than the doorbell rang loud enough to wake the dead.
我刚回到厨房，门铃又响了起来，响声足以把死人唤醒。