Biederman's sign
[医] 比德曼氏征(喉前壁呈暗红色,见于梅毒患者)
🧩 词语组成解析
🗣️ 情景例句
Hand me two eggs from the refrigerator,
替我从冰箱拿两个蛋来。
The two contestants are neck and neck with 20 points each.
比赛双方各得20分，打成平局。
Long ago, people believed that the world was flat.
很久以前人们相信地球是平的。