Unduloid
波状体
🗣️ 情景例句
Can you speak English?
你会讲英语吗？
His parents anticipate Gary's return home will be soon.
凯利的双亲认为他不久就会回家。
Glancing at his map, he informed us that the next village was a mere twenty miles away.
他瞥了一眼地图，告诉我们前面再走不到20英里就是一个村庄。