rare-earthion
基本解释
- 稀土离子
英汉例句
- It was in the days when motorcars were rare.
那是在汽车还罕见的时代。 - A top hat is a rare sight these days.
高顶大礼帽现在已不多见。 - I must admit I am very fond of collect rare book.
我得承认我很喜欢海内珍本。 - It's very rare for him to be so late.
他很少迟到。 - Red squirrels are now very rare in Britain.
红色的松鼠在英国已十分罕见了。