答案是：不要用直立的、平行的墙壁。
有两条直立的梯子的支柱，一条以蓝色表示，另一条以黑色表示。
There are two upright struts of the ladder, one shown in blue here, the other shown black.
现代主义是从固定角度来看是直立的。
And modernism is all about verticality, from a certain Angle.
这种直立的方位也是细菌脱离组织表面的第一步。
The upright orientation is also the first step in surface detachment for bacteria.
直立的毛皮通常是恐惧或生气的标志。
第十六条在直立的旗杆上升降国旗，应当徐徐升降。
Article 16 The National Flag, when hoisted or lowered from a vertical staff, shall be hoisted or lowered slowly.
这是一个直立的柱子。
确保树是直立的。
新生的枝条还可以盘绕在直立的支柱上，编织到凉棚或者篱笆里。
New stems could be coiled around upright supports, woven through a pergola or looped along a fence.
使得这地方如此与众不同的是那些直立的石头围成的环形。
What makes this place special is the circular setting of standing stones.
如果平躺,和直立的差别,将近一英尺,大家就都会觉得不对劲？
Now, if the difference in lengths between lying down and standing up if that were one foot we would all know it, wouldn't we?
盛钢桶底有个叫作水口的孔，由一根直立的耐火材料做的塞棒堵住。
There is an opening in the bottom of the ladle called nozzle which is sealed with a vertical refractory stopper.
这两个男人连身体特征都相似，都是长脸、下巴强壮，直立的刺猬头。
The two men physically resemble each other, with long faces, strong jaws, and spiky haircuts.
然后，他的背部一点一点地舒展和拉直，直到突然他变成一个真正的直立的男人。
Then, bit by bit, his back uncurls and straightens until all of a sudden there is he, upright, truly a man.
在我们的大脑进化和石器工具出现以前，我们的祖先就已经进化成为了直立的姿势。
Why do humans walk on two legs? Our ancestors evolved an upright posture well before our large brains or stone tools even appeared.
这从它们的身体姿势上（直立的尾巴），特别是从它们的叫声上很容易看出来。
This could easily be seenin their body postures, their bristled tails and most of all in their voices.
不过它们直立的身体姿态、特殊的骨盆和其他脚趾表明它们行走已经很轻松了。
Yet their upright posture, distinctive pelvis and other toes suggest they walked easily enough.
与其他动物相比人类的嗅觉很差，但这大都是因为与其他动物不同我们是直立的。
Humans are often thought to be insensitive smellers compared with animals, but this largely because, unlike animals, we stand upright.
在我们的大脑进化和石器工具出现以前，我们的祖先就已经进化成为了直立的姿势。
Our ancestors evolved an upright posture well before our large brains or stone tools even appeared.
生火取材和过后清理：直立的树木，不论生还是死，都是鸟类和昆虫的家，所以不要去损害它。
Firewood and Cleanup: Standing trees, dead or alive, are home to birds and insects, so leave them intact.
英国异常现象学者希拉里·伊文思说，有些人属于“直立的电鳗，能够携带足以使得路灯和电器短路的电量”。
According to British paranormalist Hilary Evans, some people are ‘upright human [electric] eels, capable of generating charges strong enough to knock out streetlights and electronic equipment.
石匠们用楔口连接法将楣石水平放置，将石块连接起来，然后将这些直立的石块和楣石用球窝接头或楔口接头来固定。
They made joints in stone keeping the lintels in place horizontally using a tongue and groove joint and subsequently fixing the upright and lintel with a ball and socket joint or mortice and tenon.
我的记忆中从未见过这样一把椅子，但它符合所有（与椅子）相关联的事物——它是直立的，有水平的座位，是稳定的，有若干条腿——并随之产生了视觉映像。
My mind has never before seen such a chair, but it compiles all the associations -- upright, level seat, stable, legs-and creates the visual image.
散步可以帮助你直立和获得地心重力的作用，去防止胃酸上溅到食道上。
Walking keeps you upright and enlists gravity to keep acids from splashing up the esophagus.
成年时，他用两只脚直立，年老时，他用一根棍子支撑着蹒跚的双腿。
When in manhood, he goes erect on two feet and when in old age, he supports his tottering legs with a stick.
成年时，他用两只脚直立，年老时，他用一根棍子支撑着蹒跚的双腿。
When in manhood, he goes erect on two feet and when in old age, he supports his tottering legs with a stick.
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