我们必须确保不设定无法实现的目标。

We must ensure that we do not set ourselves goals that are not ___attainable.

随着电子媒体来源变得更加经济实惠和可获得，更多人能够接触新闻。

As electronic media sources have become more affordable and ___attainable, more people have access to news.

通过努力和奉献，成功绝对是可以实现的。

With hard work and dedication, success is definitely ___attainable.