not to mention - in addition

　　off balance - unaware; off guard

　　 on the go - working or doing something all the time

　　 on pins and needles - nervous; anxious; full of anticipation

　　 on purpose - deliberately; intentionally

　　 on the blink - not working properly;broken

　　 on the right track - thinking or doing something correctly

　　 on the tip of noe’s tongue - to be about to remember somthing

　　 once in a blue moon - rarely; almost never

　　 out of it - not involved in

　　pick up the tab - pay the bill or the cost of something

　　 piece of cake - easy

　　 play by ear - act spontaneously; without planning

　　 pill it off - accomplish

　　 pull one’s leg - make fun of somenoe in a playgul way; make somenoe believe something that is not ture

　　 quite a few - many

　　raise the roof -angry

　　 right away - immediately

　　 run for office - compete for an elected position

　　 save one’s breath - to keep silent because talking would not achieve anyting

　　 say that again - a saying that means; I agree completely

　　 stone’s throw - short distance

　　 search me - an answer that means; I don’t know

　　 serves one right - is deserving of

　　 sleep on it - think about something for a while

　　 straighten up - clean up; make tidy

　　take a break - rest for a while; stop one’s work or activity

　　 think nothing of it - that’s all right

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