we are at a loss why.rt,at a loss后面的why是引导什么从句,是作loss的同位语吗?

we are at a loss why.rt,at a loss后面的why是引导什么从句,是作loss的同位语吗? we are at a loss as to why.rt,为什么介词as to可省略? 1.-Why are you staring at the worle map?-Oh,I am at a loss about ()caused the three typhoons to happen at almost the same time.A.what it was thatB.what that it wasC.why it was thatD.it was why that2.It is true that we do not know what we have got unt 解释下几个句子who prepares a statement known as the protest这话通顺吗we are really at a loss to understand why such a case would appearthe arbitration commission of the china council at a loss at a loss啥意思 at a loss 迷失,茫然 英语翻译关键词 at a loss 丢失是at loss 还是at a loss 现在的形势有些不尴不尬,大家都很茫然.（we are at a loss＿＿ ＿＿现在的形势有些不尴不尬,大家都很茫然.（we are at a loss＿＿ ＿＿ ＿＿ this awkward situation） Why do we always have to wait until after the loss to cherish,because we do not know what we are? There are five pairs___, but I'm at a loss which to buy. 答案是什么快快 Just a bit at a loss at a loss for a while why are we sleep? why we are people? 英语翻译some titles at a loss. be at a loss 后面加什么