1.
It serves to acknowledge plainly our ignorance of the cause of each particular variation.
这也明显地表示出，我们对于每一特殊变异的原因是茫然无知的。
2.
From time out of mind people have been baffled as to what may lie beyond their immediate experience.
史前时代，人们对其切身经验之外的事物茫然无知。
3.
He looked like a student for whom grammars are blank and dictionaries dumb.
他的面孔活象一个对于文法茫然无知，对于字典视同哑巴的学生。
4.
stupid and ignorant like proverbial rural inhabitants; 'the boy's empty yokel-like expression.
像一般所认为的乡下人一样愚蠢、无知；“这个男孩茫然、无知的表情”。
5.
a perplexed look
茫然不知所措的神色
6.
He was at his wits' end what to do.
他茫然失措，不知该干什么。
7.
If you get him talking on art, he soon gets out of his depth.
如果让他谈谈艺术，他就茫然不知了。
8.
I wonder how to do it.
我茫然不知如何做这件事。
9.
There was a blank look on his face because he did not know the answer.
他神色茫然，因为他不知道答案。
10.
They were ill-equipped to face their new world.
乍一来到新世界，他们茫然不知所措。
11.
I'm lost without my coffee.
我不喝咖啡就会茫然不知所措。
12.
A confused look came over Gerald
杰罗尔德露出了茫然不知所措的神色。
13.
City traffic Bewilders him
城市的交通使他茫然不知所措。
14.
When the announcement came, we were completely knocked over.
当布告发表时，我们完全茫然不知所措。
15.
She looked perplexed for a moment, and then said,
她茫然不知所措地愣了一会儿。
16.
The actor dried up and looked blank
那个演员忘了台词，茫然不知所措。
17.
Liu was all at sea when he began his new job.
刘开始新工作的时候，茫然不知所措。
18.
He seemed bewildered, uncertain
他似乎茫然不知所措，犹疑不决。