Isogram
[计] 等值线
✅ 同义词
🗣️ 情景例句
even fifty years later.
五十年之后还是这样。
It seems as if it's going to rain.
看起来天好像要下雨。
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。