up /ʌp/► SEE ALLbe up to sbbe up (with sb/sth)on the up and upup against itup and aboutup and downup and down sthup and leave, go, etc.up before sb/sthup for sthup to sthup yours! ●be up to sb1.be sb’s right to decide由某人决定◆Shall we have an Indian or a Chinese meal? It’s up to you. 我们是吃印度菜还是吃中餐呢？你说吧。◆The decision’s not up to me. 我无权决定。2.be sb’s responsibility or duty是某人的职责（或责任）◆It’s up to us to help people in need. 我们有义务帮助有困难的人。●be ˈup (with sb/sth) (spoken) be wrong with sb/sth…有问题；不对劲◆I could tell something was up from the looks on their faces. 从他们的表情我看得出有什么事不对劲。◆What’s up with the car? It won’t start. 这辆车怎么了？发动不起来了。●on the ˌup and ˈup (informal) 1. (BrE) getting better, becoming more successful, etc.变得更好（或更成功等）；日益兴旺◆Her health is on the up and up. Soon she’ll be out of hospital. 她的健康状况日益改善，不久就可以出院了。◆Business is on the up and up. 公司业务蒸蒸日上。2. (NAmE) honest诚实的◆Before we give him the job, are you sure he’s on the up and up? 我们要雇用他了，你确定他诚实吗？●up aˈgainst it (informal) in a difficult situation陷入困境◆Two of the staff are sick and the order has to be ready for delivery by this evening, so we’re really up against it. 两名员工病了，可是订的货今晚就要备好待发，这下我们犯了难。●up and aˈbout (BrE) out of bed after being ill/sick or sleeping（病后或睡后）能下床走动◆She was off work for a week, but she’s up and about again now. 她休了一个星期病假，但现在已经可以下床走动了。◆On a Saturday he’s not up and about till about eleven o’clock. 星期六他睡到十一点才起床。●up and ˈdownsometimes good and sometimes bad时好时坏◆One moment he seems well, the next he’s sick again — he’s up and down all the time. 他一会儿看起来不错，一会儿又病了，总是时好时坏。◆My relationship with him was very up and down. 我跟他的关系忽冷忽热。●up and down sthall over sth; everywhere in a place到处；四面八方◆People up and down the country are giving money to the earthquake appeal. 举国上下都在为地震捐钱。●ˌup and ˈleave, ˈgo, etc. (informal) leave, go, etc. quickly and unexpectedly突然出人意料地离开◆Without saying anything, she just upped and went. 她什么也没说，站起来就走了。●up before sb/sthappearing in front of sb in authority for a judgement to be made about sth that you have done到…面前接受裁决；出庭受审◆He came up before the local magistrate for speeding. 他因超速驾驶到当地法庭受审。●up for sth1.on offer for sth供…的◆The house is up for sale. 此房待出售。2.being considered for sth, especially as a candidate（尤指候选人）正被考虑，被提名◆Two candidates are up for election. 有两位候选人被提名参选。3.willing to take part in a particular activity愿意参与（某活动）◆We’re going clubbing tonight. Are you up for it? 我们今晚去夜总会，你愿意来吗？●up to sth1. ( up to doing sth) physically or mentally capable of sth能胜任；有能力做◆She didn’t feel up to going to work today. 她不舒服，今天不能去上班。◆At my age, I just don’t think I’m up to climbing 200 steps. 在我这个年纪，真是没法爬200级台阶。◆He’s just not up to the job, I’m afraid. 恐怕他无法胜任这份工作。2. (spoken) doing sth, especially sth bad正在干，从事着（尤指坏事）◆What’s she up to? 她在捣什么鬼？◆We used to get up to all sorts of things when we were that age. 我们在那么大的时候，常常搞各种各样的恶作剧。●ˌup ˈyours! (⚠, slang) an offensive way of being rude to sb, for example because they have said sth that makes you angry（表示愤怒的回应）去你的◆‘Go and cook me my dinner.’ ‘Oh, up yours! Do it yourself!’ “去，给我做晚饭。”“去你的，你自己去做吧！”