Learn Chinese with @cn-reader: 海阔天空

Translation: Beyond the vast sky.
Meaning: It means as vast as the sea, as wide as the blue sky. Described as open and unrestrained. Metaphorically it also means that there is no end to something.

How to use it ?

1. Describing that there is no end
   他讲起话来海阔天空，常常忘了时间。
   There is no end when he speaks, and he forgets the time.

2. Metaphoric
   退一步，海阔天空，别儘往牛角尖钻。
   Take a step back and look at open the sky, don't go towards the edge. (Meaning that, take a step back and look from a wider perspective. )

3. Describing the length
   李老师喜欢海阔天空地长谈。
   Teacher Li likes to give long talks

translator: @asianetwork