2、software用作表语：其后还可接动词不定式，该不定式的主动形式可表示主动意义，也可表示被动意义。the doctor is not available now. 医生现在没空。i'm available next tuesday if you want to meet then.如果你想碰头的话,我下星期二有空。
3、用作宾语补足语：the manager will make himself available tomorrow.经理明天会客。we should take pains to make our products available to wide market.我们应尽力将产品推销到更广阔的市场上去。