Valves of varolius
[医] 瓦罗里氏瓣, 结肠瓣
🧩 词语组成解析
n. 阀门；真空管；瓣膜（valve的复数）
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
I can only stay a few minutes.
我只能停留几分钟。
To sum up, she is a nice girl.
总之，她是个可爱的女孩。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）