Vacant channel
[计] 空余信道
🧩 词语组成解析
🗣️ 情景例句
They can keep a record of all of the important dates
他们可以记录下重要的日子。
One honest word is better than two oaths.
两句誓言不如一句实话。
The use of pesticides and fertilizers produces cheap grain and vegetables.
使用杀虫剂和化肥生产出廉价的谷物和蔬菜。