Ledrite
铅黄铜
🗣️ 情景例句
Genetically modified foods and green foods are different.
经基因改良的食物与绿色食物是不同的。
Would you mind having a group meeting tomorrow?
你介意明天开一个小组会吗？
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。