Valvulae miralis
[医] 二尖瓣
🧩 词语组成解析
[医] 瓣, 瓣膜
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
One wrong (or false) move can lose the whole game.
棋错一著，全盘皆输。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。