我相信这种瞄准具可以100%的提升射击技术.I believe this sight would improve gunnery at least 100 per cent.有两个调节钮来校准武器和瞄准具.Two adjusting screws harmonise the guns with the sight.3这种瞄准具太敏感.The sight is too sensitive....
火山的爆发是自发的.The eruption of a volcano is spontaneous.简直是维苏威火山的新娘寡妇.The widowed bride of Vesuvius.斯旺森在火山喷发时,正在驶向火山的汽车里.Swanson was in his car driving toward the volcano when it blew....