Perferrate
[化] 高铁酸盐
🗣️ 情景例句
Why not?
为什么不能？
He spends a lot of time reading books on ecology.
他花了大量的时间阅读生态学方面的书籍。
it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
提出把它作为星际间唯一可辨认的广播频率就为期不远了。