rounded end的用法和樣例：
例句
- Joe Torre thought that Akinori Iwamura was using an illegal bat because the top looks flat, not rounded as the rules state.
托瑞老爹認為岩村使用的球棒不合法，因為球棒頂端是平的，而非手冊中所寫的是圓頭。 - The rounded head of the ulna produces a bulge on the posterior side of the forearm just above the wrist.
尺骨的圓頭恰在腕上前臂后側產生一個膨大。
