1. 這使他完全茫然（而語(yǔ)塞）了。
   It left him at a complete loss (for words).
2. 大家對(duì)她的解釋茫然不解。
   Her explanations were met with blank incomprehension.
3. 如果讓他談?wù)?/a>藝術(shù)，他就茫然不知了。
   If you get him talking on art, he soon gets out of his depth.
4. 她彷佛茫然不知身在何處，猶猶豫豫向四周打量。
   As if unsure of where she was, she hesitated and looked round.
5. 她茫然地看著我們。
   She looked at us in perplexity.

然的英語(yǔ)翻譯：