Visitors may be at a loss as to what to do in a foreign envi

Visitors may be at a loss as to what to do in a foreign envi many people are at a loss as to what to do in case of an ear at a loss for what to do ,at a loss what to do都可以吗? I'm at a loss as to what to do and feel lost 1.The woman was at a loss what to do as she was frightened b at a loss what to do She is at a loss whether going out with While I was at a loss what to do, Foreign visitors are required to be in possession of a passp I am at a loss what to do 中what to do 做什么成分 英语翻译I am still at a loss whether to believe it & what to do I’m completely at a loss the know what to do next,what shoul 这是啥意思?英译中I'm at a loss as to what you mean by saying so!