I can say for certain that...
三楼错误。三楼写的
I can firmly/definitely/surely tell you that ...
意思是，“我肯定能告诉你”，跟“我可以肯定地说”意思是不一样的！
二楼语法错误。
四楼用词别扭。
倒是一楼的还算不错。：)
i can firmly tell you that...
I can firmly/definitely/surely tell you that ...
哪有人这么说话的?!
楼主啊,使用英语的人是绝对不用 "我可以肯定地说" 这句话的,他们会说:
I am absolutely totaly one hundred persents sure that ...
I could surely to say that......
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024