1. This is what I'll look like if...我将这样，如果.... 2. The harder the flashcard was for you, the sooner you have to look at it again.记忆卡越难，你就越快需要再看一遍（以便记住） 3. What am I missing out on?我将错过什么 or 我正错过什么（depending on the scene and what YOU really want to express.) 4. He is ripped (low body fat).别人骂他皮包骨 5. Is it just me, or...是我的原因，还是（别人的原因。。。。。）

1. This is what I'll look like if... 如果......，这将是我会看上去的样子。（you'd better provide a context to make it more correct.） 2. The harder the flashcard was for you, the sooner you have to look at it again. 记忆卡（提示卡）上的内容越难，你必须越早再次复习，以便加深记忆。 3. What am I missing out on? 我错过什么了？（I'm not confident about this one. I don't quite understand "out on"） 4. He is ripped (low body fat). 5. Is it just me, or... 是我(的原因)还是别人都这样？ （need context）

into Chinese?