两个极其相似的简单句的翻译

The fine weather only lasted a few days. 与另一个句子:The fine weather lasted only a few days.的翻译,有什么区别?
好天气只持续了没几天．
好天气持续了仅几天而已．

加个 而已 你能看出明显不同了吧

The fine weather only lasted a few days.晴朗的天气只持续了数天；The fine weather lasted only a few days晴朗天气持续了唯一几天。意思显然不一样

前一句：好天气只持续了几天
后一句：好天气持续了仅仅几天