Besides作副词时是否可以做转折副词?可以表示 "如果不是上述情况的话" 这个意思吗?

Besides前后表达了相同的意思.

但是这下面这段话
Regular check-ups for men would inevitably place strain on the public purse,Cartmill says. ",Cartmill说,那就是早逝Besides作副词时应该是表示一种顺承的.递进的意思,

比如
I can'."."t feel very well. Besides.最终的代价要大得多;但是长远来看,预防要比治疗省钱,Besides,那就是早逝,预防要比治疗省钱,(如果不是上述情况,不预防,不定期体检的话)."t go to the party because I don'.前面表示应该定期体检预防,后面表达了如果不定期体检可能的后果.
"但是长远来看, I have to finish my homework,而且我还有作业要做.Beisdes ,the ultimate cost is far greater : it's called premature death;

这里的Besides前后表达的意思是相反的;

定期体检,肯定会给公共财政增加压力;But prevention is cheaper in the long run than having to treat the diseases.
我不能去参加Patty因为我感觉不适.最终的代价要大得多."

regular check up 是他提倡的，引号里两个supportive points：diseases treatment和premature death 都可以由regular checkup 来prevention。是并列的意思，不是转折

应该不是吧。