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A: Our car overturned when it hit the tree. B: Was anyone injured? overturn vt. 1.使翻转，使倾覆，使倒下;2.颠覆，推翻 vi. 倾覆，翻转，翻倒 A: Were you surprised by the gift? B: Yes, I was completely overwhelmed . overwhelm vt. 1.(感情上)使受不了，使不知所措;2.征服，制服 A: I have an overwhelming need to sleep right now. B: Well, what is keeping you from having a rest? overwhelming a. 1，势不可挡的，压倒的;2.巨大的 A: What is that bird? B: I think it is an owl . owl. n. 猫头鹰 A: Is water a type of oxide ? B: Yes, as it contains oxygen. oxide n. 氧化物 A: Do you enjoy eating oysters ? B: I have never tasted them. oyster n. 牡蛎 A: Did you hear that the hole in the ozone is increasing in size? B: Yes, it is a shame. ozone n. 臭氧 P A: You don t seem to be arguing with your brother anymore. | 
