解释为什么钡能形成过氧化物而铍则不能。Explain why barium forms peroxide but beryllium does not.然而铍的毒性限制了它的作用.However the toxic properties of beryllium limit its application.但如果用铝包覆铍,则可避免加工过程中及储存期间的中毒问题.Toxicity problem in manufacturing and...
Eugene was concocting Rossini Cocktails from champagne and pureed raspberries.尤金当时正在用香槟和覆盆子酱调配罗西尼鸡尾酒。We had raspberries and cream for dessert.我们甜点吃奶油木莓子.His victory was announced to a chorus of raspberries.当宣布他获得胜利的时候,人们...
Don't rain on other people's parades.看到别人的辉煌时,不要抱怨.They celebrated the event by holding parades, lighting bonfires and setting off fireworks.他们通过举行游行、生起篝火和燃放烟花来庆祝这一事件。He always parades his superiority and striv...