Notocentrum
背椎体
🗣️ 情景例句
The teacher flunked him in geography.
老师给他的地理打不及格。
Please try to elucidate the facts.
请清楚的说明事实真相。
who produced it with a flourish and pointed out a microscopic 'o' beside the time of the arrival of the train at his station;
站长拿着时刻表一挥手，指着那趟列车到站时刻旁边一个很小的圆圈标记。