atop 四级六级

The long-toed bird—a jacana, or lily trotter—can walk atop floating plants, as the half-hidden jacana next to the hippo is doing.

这只长脚水雉鸟可以像图中这个只漏半个头河马一样，水中植物上行走。

The Red Raiders and Sooners are part of a three-way tie with Texas atop the Big 12 South at 6 and 1, with one game remaining.

红色突袭者和捷足者是12大联盟南方区6比1三方平局一，而只剩下一场比赛。