hang on - keep hold of; persevere;keep doing something

　　hard to come by - difficult to obtain

　　have a heart - have kind feelings; be understanding

　　have a hunch - have an idea based on feelings rather than reason

　　hold off - delay;postpone

　　hop to it - get started on something quickly

　　hit it off - get along well with someone

　　ill at ease - uncomfortable

　　in hot water - in trouble

　　in the air -uncertain

　　in the dark - keep someone without knowdge; information from somenoe

　　in the lone run - looking toward the future; eventually

　　ins and outs - all the details; the various parts and difficulties to be seen

　　iron out - remove the difficulties or find an answer for

　　jump to conclusions - arrive too quickly at a decision or opinion

　　keep an eye on - watch closely

　　keep one’sfingers crossed - wish that nothing goes wrong

　　keep on one’s toes - be ready for action; prepared

　　knock oneself out - make a great effort

　　learn the ropes - learn the rules and routines of a place or activity

　　little by little -gradually

　　make ends meet - to get just enough money for noe’s needs

　　make out - manage;get along

　　mean to - intentional; on purpose

　　might as well - to have no strong reson not to