Umbonal
a. umbo（盾中心的浮雕装饰）的变形
🗣️ 情景例句
Nothing ventured, nothing gained.
不入虎穴，焉得虎子。
Why so pissed off? Someone got in your way?
干嘛发火，谁惹你啦?
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡