In the United States alone, the number of infections in hospitals is estimated at close to two million each year.

VOA: special.2010.04.21

So,composition alone can't give you the answer to the question why is the plywood superior to the solid pine board?

只用组成成分无法解答,这个问题,为什么胶合板要优于松木板呢？

麻省理工公开课 - 固态化学导论课程节选

To figure out even what this thing is, let alone how to use it properly. So, you know, I'm sympathetic.

就连认出这是什么东西（都很困难），更别说正确应用它了，所以我很同情这点。

经常犯的失误 - SpeakingMax英语口语达人

Although I came into this world alone and will leave alone, I am not alone.

NPR: Natural Links in a Long Chain of Being

On occasions when we were alone you stood with us, so we were not alone.

WHITEHOUSE: President Obama and President Peres of Israel Speak at State Dinner | The White House

Labor alone and food cost alone, greatly outweigh rent for restaurants- so please redo your math.

FORBES: Why Is DC Cracking Down On Food Trucks?