Backward channel
[计] 反向信道
🧩 词语组成解析
🗣️ 情景例句
Many people take tables or capsules to try and stay healthy.
许多人靠服药或胶囊保持健康。
I'm afraid he will lose your time.
我怕他会浪费你的时间。
I don't know whether you realize it, but this condition is essential to us.
我不知道你是否了解，但是，这个条件对我们是必要的。