当对某件事情不太有把握的时候，"I can't say"能表达你的这种不确定性，意思是"我说不准......"。 1. I can't say for certain. 我说不准。 2. I can't say who did the best. 我说不准谁干得最好。 3. I can't say with any certainty that eating less can be a cure for obesity. 我不能断言节食能治疗肥胖症。 A: Who do you think will win the championship? 你认为谁能赢得冠军？ B: I really can't say. Both teams this year seem really good. 我说不好。今年两个队看来都不错。 A: There's a game on tonight. You want to watch it with me? 今晚有场比赛，你想和我一起看吗？ B: That sounds great! 好主意！
