Hellandite
钙铒钇石
🗣️ 情景例句
International travel involves a lot of waiting around in airports.
经常在机场等候是环球旅行的一部分。
He that would have eggs must endure the cackling of hens.
欲图逸，得先劳。
Tianjin will be cloudy and the temperature will...
天津多云，气温……