Indigos
(indigo 的复数) n. 靛青, 靛蓝色\\na. 靛蓝色的
🗣️ 情景例句
Littering makes the city look like a garbage dump.
随地乱扔垃圾使城市看起来就像个大垃圾堆。
You make the failure complete when you stop strying.
不再努力之时，就是完全失败之日。
What is more, this information line operates 24 hours a day.
而且，这种"问讯线路每天工作24小时。