no matter how

例句：

1. Every substance in the world, no matter how different it may seem from any other substance, is made partly of electrons.
   世界上每一種物質不管看起來和其他物質多么不同，都部分地由電子組成。
2. No matter how hard he may try, he will not succeed.
   不管他怎么努力去乾都不會成功的。
3. No matter how many prototype we make, we just can not get it right.
   不管做多少次樣品，我們都無法獲得滿意的。
4. No matter how hard he works, he can not get a promotion.
   不管他工作多努力，他就是得不到提升。