岁月静好

哪有什么岁月静好，只不过有人替你负重前行。

There is no denying (the fact) that you just unknowingly enjoy a peaceful and quiet life.  However, it is no wonder that others are bold enough to throw themselves into the fight against all difficulties and risks for your benefit. 

1. There is no denying (the fact) that 不/无可否认；不可否认的事实是

2. unknowingly adv.不知不觉地; 不知不觉的；不知情地

3. it is no wonder that: 难怪; 并不奇怪；无怪乎；不足为奇的是 

4. be bold enough to do: 勇于;大胆地去;有足够的勇气或胆量做

5. throw oneself into: 开始热心做(某事); 投入；投身于；积极从事

6. fight against: 反对; 对抗；与…作斗争；为反对……而斗争

7. for your benefit: 为了你们；为你的益处着想