这些是啥意思 在reader’s digest Osama bin Laden was the 17th of 52 c

这些是啥意思
在reader's digest
Osama bin Laden was the 17th of 52 children.It's always the middle 20,isn't it
A two-year-old is like a blender without the top on.
这是两个笑话之类的东西,但我看不出是啥意思
Fear of failure is what fuels me ,keeps me on edge and sharp.I'm not as good when I'm comfortable.
keeps me on edge and sharp 要咋翻?
还有I'm not as good when I'm comfortable.是啥意思?是个省略句吗?

Osama bin Laden was the 17th of 52 children. It's always the middle 20, isn't it ?
Osama bin Laden（本 拉登）是52个孩子中排行第17的.他始终是中东20,不是吗?（中东20国,52中间那20个数17也刚好是在其中,本 拉登始终都是中东的产物）
A two-year-old is like a blender without the top on
一个两岁的小孩就像是一个没有顶的搅拌器.（小孩的脑袋听单纯的）
Fear of failure is what fuels me , keeps me on edge and sharp. I'm not as good when I'm comfortable.
对失败的害怕才是催我前进的动力,它使我处在边缘和尖锐的困境.这样,当我安逸的时候我的感觉就很糟糕.