Foldbacks
(foldback 的复数) 返送（系统）, 监听（系统）
🗣️ 情景例句
It was an extremely difficult and dangerous task.
这是一项极度困难的危险的工作。
It seems you are not very patient with me, Ruth.
露丝，你似乎对我不太有耐心。
Please be aware that this is a crucial issue to us.
请了解这一点对我们至关重要。