Foldbacks
(foldback 的复数) 返送（系统）, 监听（系统）
🗣️ 情景例句
Come with me, Carl.
跟我来 ，Carl。
I wish I could, but it's already late.
我是想多呆一会儿，但是时间已经很晚了。
The kiwi, which is New Zealand's national bird, is one of these types of flightless birds.
几维，新西兰的国鸟，就是这些不能飞行的鸟类当中的一种。