英语语法分析

The future holds limitless promise.

未来有着无限的希望。

《新英汉大辞典》

Observations that an amateur bird-watcher can make are really limitless.

业余观鸟者的观察力是无限的。

But observations that an amateur bird-watcher can make are really limitless.

但是一个业余观鸟者所能做的观察是无限的。