Tetrabromo
四溴
🗣️ 情景例句
It's all right, Albert.
不要紧了。Albert。
It's a long story.
真是一言难尽。
Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight.
伯德这时知道他能够顺利飞抵300英里以外的南极了，因为前面再没有山了。