不了解

O I can use a word processor , but I don't understand its operation.

我能使用文字处理机，但不了解其运转机制。

I don't have brothers, so I don't know, but did you guys wrestle?

我没有兄弟，我不了解，你们会打来打去吗？

He commented wryly that he was not clear about others.

他对他不了解别人的评论是扭曲的。

Of course you can..I just don't understand why you have to do that if you are a yankees fan..

如果你要比，当然可以，我只是不了解为什麼你要这麼做，如果你是洋基的球迷的话。

Old friend for ten years, yon don't know him?

几十年的故友了，你还不了解他啊。

I don't know the youngster's thought they used to be.

我不了解这些年轻人的脑子里想的是什么。

I have no idea of what is on the youth's mind.

我不了解这些年轻人的脑子里想的是什么。

I have no idea of what's in the minds of those youth.

我不了解这些年轻人的脑子里想的是什么。

Endangered Abies yuanbaoshanensis will probably have been extinct,so it very necessary to studying its genetic diversity with a proper way in order to save this key group of biological diversity in China.In the present study,AFLP(amplified fragment length polymorphism) markers was used to examine population of Abies yuanbaoshanensis in order to understand the level of population genetic variation and genetic structure.

首先，物种的遗传多样性是长期进化的结果，是其生存和发展的前提，对遗传多样性进行研究可以为分析濒危物种或种群的进化潜力和未来命运提供重要资料；其次，遗传多样性是保护生物学研究的核心之一，不了解种内遗传变异大小、时空分布及其与环境条件的关系，就无法采用科学有效的措施来挽救濒于灭绝的物种、保护受到威胁的物种，对珍惜濒危物种制定合理的保护方针和策略，有赖于对物种遗传多样性的认识。

Reach the final stage of practice. At that moment, however, I didn'trealize that I had fallen for avijja's deception.

头的阶段，那时候无论如何我也不了解会是掉入无明迷惑欺骗的陷阱。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。