见证: to be witness to, witness, evidence...
完了: to be finished, to be done for, ruined, gone to the dogs, oh no...
抱怨: to complain, to grumble, to harbor a complaint, to feel dissatisfied...
温度计: thermometer, thermograph...
出售: to sell, to offer for sale, to put on the market...
愚昧: ignorant, uneducated, ignorance...
放暑假: have a summer vacation/have a summer holiday...
部件: part, component...
慌忙: in a great rush, in a flurry...
认定: to maintain (that sth is true), to determine (a fact), determination (of an amount), of the firm opinion, to believe firmly, to set one's mind on, to identify with...
