Undersole
大底, 鞋底
🗣️ 情景例句
the copy of Richard's book on my desk?
在我桌上那本Richard的书 好吗
Come on now-buck up-face the music-nose to the grindstone.
快振作起来，面对现实，埋头苦干。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。