When I pushed his door open, Trevor was sitting bolt upright in bed.
我推开他的门时，发现特雷弗正笔直地坐在床上。
He was an upright and noble man who was always willing to help in any way he could.
他是一个正直、高尚的人，总是愿意尽其所能来帮忙。
His face flushed scarlet and he sat bolt upright.
他的脸涨得通红，笔直地坐着。
There are two upright struts of the ladder, one shown in blue here, the other shown black.
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。
Walking keeps you upright and enlists gravity to keep acids from splashing up the esophagus.
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。
As the wheel rotates, the gondolas are kept in the upright position by a simple gearing system.
当车轮转动时，贡多拉通过一个简单的传动系统保持在垂直位置。
Bit by bit, his back uncurls and straightens until all of a sudden there is he, upright, truly a man.
他的背部一点一点地舒展和拉直，直到突然他直立起来，成了真正的男人。
They also believe that moving the moai required few people and no wood, because they were walked upright.
他们还相信移动这些摩埃石像仅需要很少的人力且不需要木材，因为它们是直立地“走”过去的。
This manual fixation—an indirect by-product of walking upright on two legs—has helped yield numbers in most cultures, but not all.
作为用两条腿直立行走的间接副产品，对手的过分关注帮助大多数文化产生了数字，但并非所有文化都是如此。
The shape and configuration of various bones must likewise be modified to allow the muscles to perform these functions in upright walking.
各种骨骼的形状和结构也必须加以调整，以使肌肉在直立行走时能够执行这些功能。
He is upright, optimistic, active and enterprising, striving for truthfulness, kindness and beauty, and seeking for an ideal society all his life.
他正直、乐观向上、积极进取。他一生都在追求真、善、美，一生都在追求理想的社会。
Moreover, even though humans have been upright for millions of years, our feet and back continue to struggle with bipedal posture and cannot easily withstand repeated strain imposed by oversize limbs.
此外，尽管人类直立行走已经有数百万年的历史，我们的脚和背部仍在两足行走的姿势中艰难斗争，无法轻易承受过长的四肢持续施加的压力。
He moved into an upright position.
他换成了一个挺直的姿势。
He managed to pull himself upright.
他设法直起了身子。
With a swift movement, Matthew Jerrold sat upright.
马修·杰罗德迅速地坐直了。
Moira sat stiffly upright in her straight-backed chair.
莫伊拉直挺挺地坐在直背椅上。
For example, some people believe that chopsticks should not be left standing upright in a bowl.
例如，有些人认为，筷子不应该直立插在碗中。
Upright and firm, Clara walked beside her friend.
克拉拉挺直身子，在她的朋友身边稳步走着。
If you ever saw a dotted line standing upright, it's the Eiffel Tower.
如果你看到由点连成的竖线时，那就是埃菲尔铁塔。
Walking upright permitted the father to use his hands to gather food and carry it to his mate from a distance.
直立行走使父亲可以用手收集食物并从远处把食物带给他的配偶。
We could see what looked like a big bed in a hotel room—with beige quilts and pillows propped upright on the headboard.
我们可以看到像是饭店房间里的大床——铺着米黄色的被子，床头板上竖直靠着许多枕头。
If the small-brained australopithecines were not toolmakers, what evolutionary advantage did they gain by walking upright?
如果脑子比较小的古猿不是工具制造者，那他们直立行走的进化优势是什么？
Last Sunday, the choirmaster was jumping out of his skin, stormy then still, playful then tender, on the most upright of pianos and melodies.
上个星期天，唱诗班的指挥大吃一惊，时而平静，时而活泼，时而温柔，伴着钢琴立柱和美妙的音乐。
For instance, many babies are perfectly proficient crawlers, but they decide to try walking because there's more to see and do when they stand upright.
例如，许多婴儿都能非常熟练地爬行，但他们却决定尝试行走，因为当他们站直时，有更多的东西能看和做。
A New Jersey black bear that walks upright on its two back legs and has become a social media darling has re-emerged and has been captured on video months after its last sighting.
一头用两条后腿直立行走的新泽西州的黑熊已经成为社交媒体的宠儿，距离上次被目击的几个月后，它再次出现并被拍了视频。
The sympathoadrenal system is unable to maintain cerebral perfusion pressure in the upright posture.
交感肾上腺系统不能维持直立位的脑灌注压。
In writing, make the characters square and upright.
字要写得方正。
When one is surrounded by the virtuous, he'll become upright himself.
蓬生麻中，不扶自直。
躯干保持向上。
她把他拉了起来。
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