Many other apps have come and gone quickly, primarily due to a lack of usage and/or high running costs, leading many to throw their Facebook efforts into Fan Pages.

其他诸多的应用程序都来去匆匆，这主要是由于使用率太低和/或运营成本太高，导致许多人把投入Facebook的精力放到了Fan Pages上去。

youdao

Many other apps have come and gone quickly, primarily due to a lack of usage and/or high running costs, leading many to throw their Facebook efforts into Fan Pages.

其他诸多的应用程序都来去匆匆，这主要是由于使用率太低和/或运营成本太高，导致许多人把投入Facebook的精力放到了Fan Pages上去。

youdao