Annelation
[化] 增环反应; 成环; 成环反应
🗣️ 情景例句
It's bright and clear today.
今天天气晴空万里。
Until all is over one's ambition never dies.
不到黄河心不死。
Is the population of the world still growing?
世界人口仍然在增长吗？