人们总认为我是个傻瓜，想必他们是对的。People always think I'm a fool, and I dare say they're right.他竟然跟她扯到了一起，真是傻瓜！He'd been a fool to get involved with her!马克称自己被搞得像个傻瓜。Mark claimed he was made to look a nerd....
The material is readily prepared by reaction of formaldehyde and hydrazine.这种物质很容易由甲醛和肼反应而得到.Formaldehyde slowly inactivates many viruses.甲醛能慢慢使多种病毒失去活性.Sulfur dioxide and formaldehyde both produce irritation.二氧化硫和甲醛都可产生...