更清楚的

Stress reduces neurogenesis in the dentate gyrus subgranular zone, but it is unknown if stress-induced changes in neurogenesis contribute to individual vulnerability.

长期压力已知会导致一些精神疾病，但是尚不清楚一些人比另外一些人更容易产生这些症状的神经基础。

And it was unclear who would benefit most from the new jockeying between the presidential contenders.

也不清楚两人中谁将在这场新的角逐中受益更大。

You have to understand that children have short attention spans and do tire more easily.

你要清楚，孩子的注意广度不长，更容易感到厌倦。

Better than I know more about the shortcomings of their own ..

没有人比我更了解清楚自己的缺点。。

But ordinary middle-class adulterers are harder to pin down.

但要想搞清楚普通中产阶级的偷情情况就更难。

People with fat in their thighs and backsides may live longer because the fat traps harmful fatty particles and actively secretes helpful compounds, according to a report published on Tuesday.

许多研究也显示，与下肢肥胖的人相比，腹部和胃部脂肪堆积容更易引起心脏病死亡，原因还不甚清楚。

I don't know Japanese or Chines education system so i truly can't say which is better.

我不太清楚中国或日本的教育体制，所以我不能说哪一个更好。

I decided to systemise it really, because one of the things is to warm-up and I think as I get older and older I must do it better.

我决定将他们真正地系统化，其中一件事情就是要进行热身运动，而且我也很清楚随着我的年龄越来越大，我必须做得更好。

It is unclear what exactly makes dogs such good smellers, though much more of the dog brain is devoted to smell than it is in humans.

尽管与人相比狗的大脑更多用于嗅觉，但是，究竟是什么使狗如此善于辨别气味还不清楚。

The Nylon Amphibious cloth Force 10s are even lighter weight than the OD ripstop Force 10's that I've been wearing. But, I wasn't sure which one would be better suited for hot weather, so I wore them on alternating days for comparison.

尼龙 Amphibious Cloth Force 10 比我一直穿的 OD 绿防刮布 Force 10 还要轻，但是，我不清楚哪一条裤子更适合天热时穿着，所以，我在一段日子里轮流穿这两条裤子，以进行比较。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。