Duplexer
[电] 双工器
🗣️ 情景例句
Nervous?
紧张？
Kinsman helps kinsman, but woe to him that hath nothing.
亲帮亲，邻帮邻，无亲无助你倒霉。
but ten months later, she received a letter from a girl in Holland.
但10个月以后，她收到了荷兰一位姑娘的来信。