电影《半条命》剧情：Version 1:
In a groundbreaking achievement, an American scientific research facility successfully activates a portal to an unknown and dangerous alien realm. Little did they know, this opened the floodgates for a full-scale invasion as the hostile extraterrestrial beings gradually infiltrated and wreaked havoc on Earth. 影片推荐：神秘博士：诅咒之旅抵挡计划美少女战队阴云透明人2神秘博士：圣诞入侵科洛弗道10号天外世界：外星人星球极地寒流超体(普通话版)大圣重生之斗战逆天深海巨妖2
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