短语词组短语Poison n Gas 毒气;军用毒气poison -gas bomb 毒气弹Poison Gas Bomb 毒气弹defense against poison gas 防毒poison gas atomizer 杀虫毒气喷雾器poison gas rockets 可使敌人降速Bhopal poison gas accident 博帕尔毒气泄漏事故poison gas trap 毒气陷阱;毒气陷坑 返回 poison gas