ground combat phase的用法和样例：
例句
- The combat damage step is the fourth step of the combat phase.
战斗阶段的第四个步骤，就是战斗伤害步骤。 - It remains an unblocked creature until an effect causes it to become blocked, it's removed from combat, it stops being a creature, its controller changes, or the combat phase ends.
且在某效应使其被阻挡，被移出战斗，不再是生物，操控者改变，或战斗阶段结束之前，都一直是未受阻挡的生物。
