When the pull line is pulled or loosened, the reel can rotate positively and reversely, which drives the screen curtain to roll up or fall down.
拉动或松开拉线，卷筒可正、反向转动，带动纱帘卷起或落下。
Rock burst normally refers to the craze of the terrane with crepitation when the rock slices or rock pieces shoot off along with a certain direction or fall down.
岩爆一般是指在隧道开挖后，发生的一种带有爆裂声响的岩层开裂，岩片或岩块沿一定方向弹射出或坠落下来。
Sleep experts say that if you feel groggy or tired during the day, feel the urge to nap, or if you fall asleep within five minutes of lying down, you could possibly be sleep-deprived.
睡眠专家们说如果你整天都感觉昏昏沉沉或疲惫不堪，很想要打个盹儿，或者是你躺下来五分钟内就去见了周公，你很可能已经处于睡眠剥夺的状态了。
Horowitz expects Goldman will see the greatest fall in investment banking volumes, down 30% from the first quarter, or down 43% from a year ago.
霍诺·维茨预计高盛的投资银行业务量创下最大跌幅，比第一季度减少30%，比去年同期减少43%。
After being absorbed, the particles of water unite and form clouds; then they fall down in the form of fog, rain, snow, or hail.
原来，水分被空气吸收以后，空气中的水分子就会积聚成云，然后它们会变成雨，变成雪，变成冰雹降落下来。
Japanese home prices have since fallen by just over 40%. American prices are already down by 20%, and many economists reckon they could fall by another 10% or more.
日本房价从高点下落以来跌去仅40%多，而美国房价已经下跌了20%，并且很多经济学家预计房价还会跌去10%或者更多。
Though pressed confidently over one benighted place, they might slide slowly down, or fall off, all of which Mr Scott took in his smiling stride.
尽管它们被信心满满地按在一个傻乎乎的地方，可它们还是会缓缓下滑，要不干脆掉下来——对此斯科特都一笑而过；
To encourage you toward a slow and delicious path, allow me share the wise words of my father, who often told me: ”Slow down, kid, or you’re gonna fall and hit your head.
为了鼓励你走进一个放慢了而有滋有味的途径，这里我想分享一下我父亲曾讲过的一些话，他经常讲给我说：“孩子啊，你要慢一点，否则你就会摔倒，撞到你的头。”
We can meditate in a number of different positions - on a cushion, on a bench, on a chair or even lying down (though I don't recommend this one as it is too easy to fall asleep).
我们可以多种姿势——在坐垫上，在长椅上，在椅子上或者直接躺在床上(我不提倡这种，因为那样极易睡着。)
Remember teaching your child to ride a bike. Eventually you let go of the seat and your child went sailing down to sidewalk only to eventually fall and at some point scrape a knee or palm.
记得让你的孩子骑上自行车，因为最终你会忽略了孩子，而你的孩子在外游玩的时候很容易会在人行道上摔倒擦伤膝盖和手心。
On physical education and extra-curricular activities to prepare before the warming-up, attention should be paid to exercise when not to dramatic collision, so as not to be knocked down or fall.
上体育课和课外活动前要作好准备活动，运动时要注意不要剧烈碰撞，以免撞伤或摔伤。
Or his turning down an invitation to attend the 20th anniversary celebration of the fall of the Berlin Wall?
还记得他如何拒绝参加纪念推到柏林墙二十周年的邀请吗？
No, you can't. You should place it under your seat. Or it might fall down and hurt somebody.
不可以。您应该把它放在座位下面，否则它有可能掉下来砸伤人。
Once the racquet is back at eye level, the racquet can now fall, or loop down, to the low point of the backswing (one foot below the contact point) before swinging forward.
一旦网拍回到在眼睛高度，网拍现在能落下，或环状下来，在向前挥拍之前，拉到背后拉拍的低点接触点下面一？眨。
Though pressed confidently over one benighted place, they might slide slowly down, or fall off, all of which Mr Scott took in his smiling stride.
尽管它们被信心满满地按在一个傻乎乎的地方，可它们还是会缓缓下滑，要不干脆掉下来——对此斯科特都一笑而过；
If a squirrel should jump or fall out of a tree the tail can be spread out like a small parachute to slow the squirrel down.
如果松鼠跳跃或者从树上掉下来，尾巴能够像降落伞一样展开，使松鼠慢慢下落。
Don't fall into the trap of pushing how you deep down feel or think away with distractions or forced positive thinking.
不要陷入误区，去强行改变你心底的感受，或者转移注意力，或者强迫自己积极地思考。
When a vital tool slips out of her grasp, it is not going to slow down or fall to the ground, it is going to keep going forever.
当重要的工具从她手中滑落，不会放慢速度或掉在地上，而是永远向前翻滚。
It's fine if feeding lulls your baby to sleep in the early months, Altmann says, but by 3 or 4 months you may want to try putting him down awake so he'll learn to fall asleep on his own.
在宝宝头两个月的时候，如果他喝着奶就睡着了，那也没关系。A说，但是到他3、4个月大以后，你最好在他醒着的时候放下他，这样宝宝才能学会自己睡着。
The choices you make can lead to success or down fall, so you must feel confident in your ability to make the right call.
你所做出的决策可能会直接导致成功或者失败，因此你必须对自己做出正确决策的能力充满信心才行。
The head coach emphasized it is now important "that things calm down again", however it should not get too quiet, "or we would all fall asleep here".
主教练强调现在重要的是：“事情已经平息下来了”，然而不能变得过于安静，“否则我们都要在这睡着了。”
And some day the niftiest of these "smart meters" could even turn central-heating systems or air conditioners up or down as power prices rise and fall.
将来智能化程度最高的电表甚至能自己按照一天中电价高低的变化来关小或开大中央暖气和空调。
Finally — and this is important — when a goose gets sick or is wounded by gunshot, and falls out of formation, two other geese fall out with that goose and follow it down to lend help and protection.
最后——也是关键的一点——遇有大雁生病或因枪击受伤掉队时，会有两只大雁离队陪着它，跟在后面提供帮助和保护。
Finally — and this is important — when a goose gets sick or is wounded by gunshot, and falls out of formation, two other geese fall out with that goose and follow it down to lend help and protection.
最后——也是关键的一点——遇有大雁生病或因枪击受伤掉队时，会有两只大雁离队陪着它，跟在后面提供帮助和保护。
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