This to-and-fro approach is called a "rocking chair" design.
这种往回式方法称为“摇椅(rocking chair)”式设计。
She stood up and began to pace to and fro.
她站起来开始来回地踱步。
She rocked the baby to and fro.
她来回摇动着婴儿。
The ship was rolling heavily to and fro.
轮船剧烈地颠簸着。
Heidi in her transport was running to and fro: "Grandfather, come out!"
海蒂在路上里跑来跑去，喊着：“爷爷，快出来！”
What those early craftsmen had found by trial and error was that under pressure a pagoda's loose stack of floors could be made to slither to and fro independent of one another.
"那些早期的工匠通过反复试验发现：在压力作用下，宝塔松散堆叠的楼层可以彼此独立地来回滑动。
I paced the floor to and fro with heavy strides as if I was excited to fury by the observations of the men—but the noise steadily increased.
我迈着沉重的脚步地来回走着，仿佛我对这些人的调查感到很愤怒——但这种声音越来越响。
As it shrieked and moaned, the poor little sufferer was blown to and fro like the hammer of a bell.
它在尖叫呻吟，这个可怜的小小受难者就像钟锤一样被吹来吹去。
"I am making the bed now," the little girl called out again, while she ran busily to and fro.
“我正在收拾床铺呢。”小女孩一边忙着跑来跑去，一边又叫道。
The ray quivered to and fro, making her figure dim or distinct- now like a real child, now like a child's spirit- as the splendor went and came again.
那束光来回抖动，使得她的身影忽明忽暗——一会儿像个活生生的孩子，一会儿又像是孩子的精灵——随着光忽明忽暗。
He walked impatiently to and fro and finally turned his nose toward the Field of Wonders.
他急躁地来回走着，最后把鼻子转向了神奇的土地。
Here the wind was roaring through the branches and the tree-tops were swaying to and fro.
风呼啸着吹过树枝，树冠来回摇摆。
The streets were filled with people running to and fro about their tasks.
街上满是为了工作跑来跑去的人。
The room thrummed with the activity of packets fluttering to and fro like little digital moths around a digital streetlight.
充斥房间的活动数据包来回地跳跃，就像围绕着数字路灯的数字飞蛾。
Various kinds of vehicles run to and fro in the street.
大街上往来的车辆很多。
He hopped to and fro between London and Paris for the business.
为了这笔生意他曾不停地往返于伦敦和巴黎。
When the shuttlecock was hit to and fro with a racket across a net, thegame was badminton.
双方用球拍拍打毽子使它来来往往的越过网前，这种游戏就是羽毛球。
String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm — two entirely different movements.
弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。
Our truck was being tossed to and fro like a toy, and when it stopped, I looked out the windows to see buildings “pancaking” down, like I have never witnessed before.
我们的卡车突然像玩具一样，从山路上被“扔”出来，当他停下的时候，我望出窗外看到一栋栋大楼好像是“坠落”到地面上，那是谁都没有目睹过的场面。
Catherine amused herself with dancing to and fro before the door, while I tried all the large keys in succession.
我把所有的大钥匙一个一个地试着的时候，凯瑟琳就在门外跳来跳去的自己玩。
The two men were evidently getting on to the tax again, for I could hear them bandying figures to and fro.
两个人毫无疑问又扯上了收税的事情，因为我能听到他们在反复掰弄着一些数字。
String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm-two entirely different movements.
弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。
On the starting grid he paced to and fro, endlessly polishing his goggles, chain-smoking cigarettes or feverishly chewing a wad of gum.
在开始的栅格他来回踱步了，不断地擦亮他风镜，链子抽烟的香烟或者狂热嚼一团胶。
I paced the floor to and fro with heavy strides, as if excited to fury by the observations of the men — but the noise steadily increased.
我迈着沉重的脚步地来回走着，仿佛我对这些警察的调查感到很愤怒，但这种声音仍然持续地增强。
This bats to and fro and eventually gets signed by both and then is filed away in a drawer and usually forgotten about.
这要经过反复推敲，最终双方签字，然后归档，把它扔进一只抽屉，之后通常情况下就被遗忘了。
It's all about spatial awareness: Those who walk-n-surf tend to weave to and fro, making them impossible to pass on crowded or skinny sidewalks.
这都是由于对于空间的认识：那些边走边上网的人会更容易限制于前后空间，让他们无法穿过人群或者拥挤的人行道。
On the contrary, the frog went to and fro on the frontier, looking for something edible.
与之相反，青蛙在边境上来来回回地寻找能吃的东西。
Formed grief, while not heaving to and fro with uncontrollable sobs, has a peculiar profundity.
不再因无法控制的抽泣而来回起伏时，形式了的悲伤有着特殊的深刻性。
The ray quivered to and fro, making her figure dim or distinct- now like a real child, now like a child's spirit- as the splendour went and came again.
那阳光来回抖动，使得她的身影忽明忽暗一会儿象是个活生生的孩子，一会儿又象是孩子的精灵随着阳光去面复返。
The ray quivered to and fro, making her figure dim or distinct- now like a real child, now like a child's spirit- as the splendour went and came again.
那阳光来回抖动，使得她的身影忽明忽暗一会儿象是个活生生的孩子，一会儿又象是孩子的精灵随着阳光去面复返。
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