Valvulae
[医] 瓣, 瓣膜
🗣️ 情景例句
And you, Susan Stewart,
那么 ，Susan Stewart
If two men ride on a horse, one must ride behind.
两人同骑一马，必有一人在后。
But Wu Dong ran fastest of all.
但吴东在三人中跑得最快。