鼓励朋友是一件非常重要的事情，可以让他们感到支持和动力。下面是一些关于鼓励朋友加油的句子简短英语：

1. Don't give up, keep going!（不要放弃，继续加油！）

2. You can do it, I believe in you!（你能做到，我相信你！）

3. Go for it, give it your best shot!（加油，尽你所能！）

4. Keep pushing forward, success is within reach!（继续前进，成功就在眼前！）

5. You're capable of great things, don't let anything hold you back!（你有巨大的潜力，不要被任何事情所阻拦！）

6. Believe in yourself, I know you can make it happen!（相信自己，我知道你能实现它！）

7. Keep your head up, stay positive, and keep moving forward!（抬起你的头，保持积极，继续前进！）

8. The road to success is never easy, but I know you have what it takes to overcome any obstacle!（通往成功的道路从未容易，但我知道你有能力克服任何障碍！）

9. Stay strong, stay focused, and never give up on your dreams!（保持坚强，保持专注，永远不要放弃你的梦想！）

10. I'm here for you every step of the way, let's conquer this together!（我会一直陪伴你，让我们一起征服它！）