这座炮以60度仰角开火.The gun was fired at an elevation of 60 degrees.这门炮的仰角为45度.The gun has an elevation of 45 degrees.压根不知道仰角和俯视绘图的概念.You don't even know the definition of high and low angle drawing....
I get very nervous because I'm using a lot of expensive equipment.因为正在使用很多昂贵的设备，所以我非常紧张。The man was known to the police because of previous convictions.因为有犯罪前科，警察们都认识这个人。I thought they were laughing at me because I ...