不了解

I would like to add that I am not unaware of the shooting or survival.

我想补充的是我不是对射击或生存不了解。

My brother pig always jumped onto the roof of the house to mimic the siren's sound at ten o'clock in each morning. The workers whoever heard it came back---it is an hour and a half earlier than the sounding of the siren. Frankly speaking, brother pig was unblamable. After all, he was not a boiler, and the sound he made was a bit different from that of siren, still, the old fellows said it was hard to identify.

第二， "知青"，"肉猪"这些在汉语中为人所熟悉的词，对不了解中国文化/行业文化的人，他们不清楚词语所指，因为中国内地的人往往会把一个稍长的名词简化成二字，如"知识青年"简化成"知青"，时常会误导人们使其以为是某新造之词，从而难以下笔；猪贩知道"肉猪"，但此词也可能是出现在某个地区对阉猪的特有称呼，如果没有加以解释，译者必会大惑不解。

Essentially, this contradiction is related to unfamiliarity with relevant knowledge.

出现这一不平衡的根本原因是人们不了解相关的情况。

He felt no my feeling for his unknowing to a young of 18 years ago.

他不了解我的心情。他不会认识十八年前的年轻人。

That was because he did not understand them; they were strange to him and often even unreal.

那是因为，他不了解他们，他们对他来说有时甚至是奇怪的、不真实的。

All this would have happened because I didn't understand and validate her feelings.

这些都将会发生，因为我不了解也不认同她的感觉。

At Vanderbilt you are just a face in the classroom, the professors really don't know us as individuals with interests and strengths of our own.

你只是教室里的一个面孔而已，教授们根本不认识你，更不了解你的兴趣和优势

Failure analysis: the generation of this fault was mainly due to customer's use of adhesive viscose trick\emdashthe performance.

故障分析：这个故障的产生主要是由于客户对不干胶粘胶剂的使用性能不了解造成的。

They think that they can continue their wanton disregard for human rights.

自由是一个中国人不理解的感觉，他们知道自由的存在，但是他们却不了解它。

"Ah! I know nothing about the feelings of parents," said the Water- rat; I am not a family man.

"啊：我完全不了解做父母的情感，"河鼠说，我不是个养家带口的人。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。