above all - most importantly

　　account for - explain

　　as a matter of fact - in fact ,to speak the truth

　　as a rule - generally ;normally

　　about to - be ready to;be on the point of doing something

　　an old hand - be an experienced persom

　　any day now -soon

　　approach sb -talk to sb

　　be fed up with - be out of patience with

　　be on one’s own - live independently

　　be on the safe side - take no chances

　　be out of something - have no longer in supply

　　be tired of - be bored with ,frustrated with

　　be up to ones’ears - be extremely busy

　　be up to someone -be a person’s responsibility

　　be out for -trying to get

　　be out of the question - be unacceptable ,impossible

　　bite off more than one can chew - take on more than one can handle

　　break down - cease to function