Duplexor
[电] 双工器
🗣️ 情景例句
A journey of a thousand miles begins with a single step.
千里之行，始于足下。
She felt very awkward about the unpleasant situation.
她因不愉快的场面而感到十分困窘。
I feel I am the happiest person in the world.
我觉得自己是世界上最幸福的人了。