Duplexer
[电] 双工器
🗣️ 情景例句
OK.
好的。
I'd met Stone several times before.
以前我见过世通几次。
The next time you see a watch, look at the back. You may see the English words Made in China.
下次你瞧见一块手表是，瞧瞧它的背面。你也许能看到“中国制造”的英语字样。