Dogs and cats, like humans, are either right or left handed.
猫狗和人一样也有左、右撇子之分。
I'm having trouble with this gear lever because I'm left-handed.
我难于操纵这个变速杆，因为我是左撇子。
I batted left-handed and bowled right-handed.
我左手击球，右手投球。
她用左手写字。
There is a shop in town that supplies practically everything for left-handed people.
镇上有一家商店，出售左撇子用品。
A left-handed toolmaker would produce the opposite pattern.
一个左撇子工具制造者会做出相反的图案。
The twenty that make up the proteins on Earth are all left-handed.
组成地球上蛋白质的那20个（氨基酸）都是左旋氨基酸。
We are without any doubt the largest supplier of the left-handed items.
毫无疑问，我们是左撇子产品的最大供应商。
Can we be critical of a person who is born left-handed or dyslexic?
我们能批评一个生为左撇子或生来就有诵读困难的人吗？
Campaigners point out that a high percentage of the prison population is left-handed.
活动家们指出，监狱中，囚犯是左撇子的比例很高。
Manufactures are now beginning to see that there is a market for left-handed products.
现在制造商们开始发现左撇子产品的市场。
30 years after Gruby's initial efforts, there are more left-handed product actually on the market.
在格鲁比初次尝试的30年后，市面上出现了更多面向左撇子的产品。
Campaigners feel it's strange that children in British schools are penalized because they happen to be left-handed.
令活动家们感到奇怪的是，在英国的学校里，孩子们仅因为他们碰巧是左撇子而处于劣势。
Campaigners have warned that the British government is not doing enough to prevent left-handed pupils from falling behind their peers.
活动家们警告说，英国政府在防止左撇子学生落后于同龄人方面做得不够。
A further puzzle is why are there always a few exceptions, like left-handed humans, who are wired differently from the majority of the population?
更让人困惑的是，为什么总是有少数例外？比如左撇子，他们与大多数人的思维方式不同。
They want the department of education to record which children are left-handed and what their educational attainments are, since they make up some 10% of the population.
他们希望教育部记录哪些孩子是左撇子以及这些孩子的受教育程度，因为这些孩子占人口的10%左右。
Nor does it explain why, in a species where one parent determines handedness, a brood is not exclusively right-or left-handed when the offspring would have the same genetic predisposition.
这也不能解释为什么在一个由父母一方决定用利手的物种中，当后代具有相同的遗传倾向时，他们并非完全是右撇子或左撇子。
A prevalence of left-handed amino acids would indicate they were biological in origin.
如果左旋氨基酸占大多数的话，就说明这些氨基酸从根源上来说是具有生物性的。
Nor does it explain why, in a species where one parent determines handedness, a brood is not exclusively right or left-handed when the offspring would have the same genetic predisposition.
这也不能解释为什么在一个由父母一方决定利手的物种中，当后代具有相同的遗传倾向时，他们并非完全是右撇子或左撇子。
Nor does it explain why, in a species where one parent determines handedness, a brood is not exclusively right- or left-handed when the offspring would have the same genetic predisposition.
这也不能解释为什么在一个由父母一方决定用手习惯的物种中，当后代具有相同的遗传倾向时，他们并非完全是右撇子或左撇子。
They claim that thousands of children are still being "penalized" for being left-handed.
他们声称，数以千计的儿童仍在因左撇子而“处于劣势”。
But the ones synthesized through abiotic processes, which is to say not involving microorganisms, occur in equal numbers of right- and left-handed.
但是通过非生物过程合成的，也就是不涉及微生物的那些，在右撇子和左撇子中数量是相等的。
Mr. Gruby being left-handed himself, thought of the idea to try to promote a few products for left-handers.
格鲁比先生自己也是左撇子，他想到了这个主意，试图推广一些为左撇子设计的产品。
The idea is that right-handed neutrinos might be much heavier than left-handed ones and so could provide the requisite gravity.
这种观点是，右手中微子可能比左手的中微子重得多，因此可以提供必要的重力。
This indicates some process involving liquid water favours the creation of left-handed amino acids.
这显示由液态水所参与的某些未知过程倾向于产生左型氨基酸。
And this book shatters a big myth: he did not force Mr Nadal to play left-handed; "Rafa" is ambidextrous.
此书也泄露了一个大秘密：他从来没有强迫纳达尔打左手；“拉法”的左右手都能打球。
Or exactly how being left-handed, which relates to brain symmetry, translates into other functions of the brain.
还有我们知道左撇子和大脑的对称性有关，但到底如何解释大脑的其它功能呢？
Can we be critical of a person who is born left - handed or dyslexic?
我们能批评一个生为左撇子或生来就有诵读困难的人吗？
In the human world, the left-handed seem at quite a disadvantage.
在人的世界里，左撇子似乎处于相当不利的地位。
A left-handed molecule is one that causes polarised light to rotate to the left (ie, anticlockwise).
左旋分子就是使偏振光发生左(即逆时针方向)旋的分子。
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