at one time=at once?at one time=at once 还是 at one time=once?或者是别的

at one time=at once?at one time=at once 还是 at one time=once?或者是别的 Don't all speak at once!___,please.A.Each at one time B.Ono by one time C.One for each time D.One at a time. 英语3.Don’t all speak at once!________,please.3.Don’t all speak at once!________,please.a.Each at one time b.One by one time c.One for each time d.One at a time为什么 请问大家Do not all speak at once!One at a time,please.如何翻译啊? don`t all speak at once,one at a time.啥意思? at one time one at a time One at a time at one time not at one time one time=once Don't all speak at once ________,please.(1994)A.Each at one timeB.One by one timeC.One for each tineD.One at a time说明原因 Don’t all speak at once!_________,please .A.Each at one time B.One by one time C.One for eachb的one by one是一个一个的 为什么不对D.One at a time at once=什么? Don’t all speak at once!_________,please .A.Each at one time B.One by one time C.One for eachh time Done at a time答案是D为什么不选C Don't try to do all at once;take one ____a time.A at Bon Cin Dfor at the same time,at one one wallet at a time