This pack contains the basic editor to start building your own Tower Defense maps.

这个包包含了基本的编辑器，开始建立自己的防御地图。

youdao

With their Pack-line defense getting even better at not over-helping (help defense … what a concept! ) against dribble penetration, the 19-2 Celtics have the NBA's top defensive rating.

在没有协防的情况下随着凯尔特人队的包夹防守战术的日趋成熟，凯尔特人队取得了19胜2负的战绩、有着NBA第一个的防守。

youdao

The Mophie juice pack is my first line of defense.

CNN: 8 digital tools to help you survive SXSW