常見(jiàn)例句用作名詞 (n.)Bombs and poison gas would rain down on undefended cities.炸彈毒氣彈紛紛投向那些沒(méi)有防御的城市。The police used poisonous gas to force the robbers out of the house.警方施放了毒氣彈，把劫匪逼出了屋子。 返回 gas shell