seen /siːn/► SEE ALLhave seen/known better dayssb wouldn’t be seen/caught dead…nowhere to be found/seen●have seen/known better ˈdaysbe in a worse condition than in the past今不如昔；曾有过一段好日子◆That jacket of yours has seen better days — isn’t it time you bought a new one?你那件夹克衫可是有年头了，是不是该买件新的了？●sb wouldn’t be seen/caught ˈdead… (spoken) used to say that you would not do a particular thing because you would feel stupid or embarrassed决不会去做某事（以免露怯或尴尬）◆I wouldn’t be seen dead in a hat like that.我不愿意戴那样的帽子出洋相。◆She wouldn’t be caught dead in a place like this.她死也不愿去这样一个会使她感到尴尬的地方。●nowhere to be ˈfound/ˈseen ( nowhere in ˈsight) impossible to find找不到；看不到◆They searched the house but the necklace was nowhere to be found.他们在屋里到处寻找那条项链，但怎么也找不到。◆By the time I arrived at the station, the others were nowhere in sight.等我赶到车站时，其他人都已不见踪影。