英语语法分析

Then the watcher announced that the "Lindy Hop" was the name of the dance, and it has stuck since then.

接着，观察者宣布，这支舞的名字是“林迪舞”，并且从那以后就一直沿用了下来。

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。