for/from want of 由于缺少……
The flowers died from want of water.
Some of the wounded soldiers died for want of medicine.
for the use of 供……使用的
This parking lot is for the use of employees only.
This dining hall is for the use of teachers.
in support of 为了支持……，为了拥护……
He spoke at the meeting in support of my idea.
They decided to stay in support of the new leadership.
so as to 为了（做）……，以便（做）……
They made a lot of lively programs so as to attract more children.
I left home at 5:00 in the morning so as to be there on time.
in search of 为了寻找……，为了寻求……
He went to the south in search of better prospects.
She immigrated to New Zealand in search of a quiet life.
for the sake of/for one's sake 为……起见，为了……
His family moved to the countryside for the sake of his son's health.
He betrayed his friend for money's sake.
for one's own safety 为了某人自身的安全
For your own safety please don't smoke inside the plane.
Please fasten your seat belt for your own safety.
for future reference 为了以后参考，为了今后备查
Keep all the price lists on file for future reference.
You can take this booklet home for future reference.