"For an amount of time" in Mandarin Chinese

Another excellent and straight forward explanation from East Asian Student.

"To express that an action was carried out over a certain length of time, English uses often “for”. This is a very versatile word in English, so there a few different points to consider when expressing the same thing in Mandarin."
I always find these examples useful. 

"For an amount of time" in Mandarin Chinese: translation and grammar