If you talk about, for example, any given position or a given time, you mean the particular position or time that you are discussing.
In chess there are typically about 36 legal moves from any given board position.
在国际象棋中,从棋盘的任何一个方格都可以移动大致36步。
Given is the past participle of give.
given that
If you say given that something is the case, you mean taking that fact into account.
Usually, I am sensible with money, as I have to be, given that I don't earn that much.
我花钱通常是很精打细算的。考虑到自己挣得不多,不得不这样。
Given is used when indicating a possible situation in which someone has the opportunity or ability to do something. For example, given the chance means 'if I had the chance'.
Write down the sort of thing you would like to do, given the opportunity.
请写下如果有机会你想做的事情。
If you say given something, you mean taking that thing into account.
Given the uncertainty over Leigh's future I was left with little other choice.
考虑到莉前途未卜,我几乎没有选择余地。