start up
兩個(gè)意思：1.get going or set in motion
“發(fā)動(dòng)”
如：start the engine發(fā)動(dòng)引擎； Start the computer開電腦（天天要用的 咯：-）
2.connected with starting a new business
“開廠子開公司之類的”
如：start up a nursery 開托兒所；started up a new business開辦了新業(yè)務(wù)
Start out
1.take the first step or steps in carrying out an action
“第一次開始進(jìn)行某事”
如：He started out to write a novel.他開始著手些一部小 說(shuō).
2.leave
離開的意味“動(dòng)身、啟程、出發(fā)”
如：He started out on his journey .他啟程踏上旅途.
如：What time did you start out?幾點(diǎn)動(dòng)身?
所以兩個(gè)東西區(qū)別還是有的,看具體用的地方,發(fā)動(dòng)汽車飛機(jī)計(jì)算機(jī)啥的、開公司做生意之類的用“Start up”
著手干嘛事、要離開動(dòng)身去哪玩之類用“Start out"
結(jié)合自己感受寫的,夠自己用不精確,精確的翻字典~