Number six, CTA, this means a call to action.

第六个，CTA，意思是行为召唤。

For example, subscribe to English with Lucy, that's a really good CTA.

比如，请订阅跟着Lucy学英语频道，这就是个非常好的行为召唤。

So far, however, the CTA has had only limited success in building a truly global community.

然而，到目前为止，中国道教协会在建立一个真正的全球社区方面只取得了有限的成功。