如果它们掉落,会出现永久性损坏。
A.If they fail, temporary damage can occur. B.If they drop, permanent injury can occur. C.If they fall, permanent damage can occur正确答案C
如果它们掉落,会出现永久性损坏。
A.If they fail, temporary damage can occur. B.If they drop, permanent injury can occur. C.If they fall, permanent damage can occur正确答案C