Polycoumarone
[化] 聚香豆酮; 聚氧杂茚
🗣️ 情景例句
People who take less exercise seem more vulnerable to illness.
缺少运动的人对疾病的抵抗力就差。
You never know.
天晓得。
Television cameras and newspapers carried the news to everyone in the country.
电视摄像机和报纸把消息传送到全国。