Umbo
n. 盾心的浮雕装饰, 壳顶, 鼓膜凸\\n[医] 突, 圆头
🗣️ 情景例句
Your letter filled me with great vitality.
读了你的信之后我感到充满活力。
It doesn't make any difference.
都一样。
Twenty people had already left.
有20个人已经离去。