Paging a memory block out and back in from disk is significantly slower than accessing it directly from RAM, so you should generally avoid this practice.
与直接访问RAM中的内存块相比，把内存块交换到磁盘并交换回来要慢得多，所以一般情况下应该避免这种做法。
Late Tuesday, however, some Facebook users apparently had all of these potentially irritating notifications turned back on — even if they'd tried to block them.
然而，周二的晚些时候，一些脸书用户显然收到了所有那些潜在的恼人的邮件提醒——就算他们尝试去阻止它们也无济于事。
When you sleep on your back, your tongue falls backwards into your throat which can narrow your airway and partly block airflow.
仰睡会让舌头滑落到咽喉部位，减小了呼吸道的面积，一定程度上阻塞了空气流通。
Going back into North Block after all of this, I found myself constantly looking up and constantly looking over my shoulder.
这之后我们回到北区，我发现自己不停地向上和两边张望。
The way to learn this isn't to try to block work from your mind - it's to learn to bring your mind back to whatever you're doing after work.
学习它的方法并不是阻止自己去想它而是通过想别的事情，任何你下班后做的事情。
"I thought that it is best that I should withdraw and go back to South Africa so that I do not become a stumbling block myself," said Ramaphosa.
他说：“我认为我最好退出这个斡旋小组，返回南非，这样我就不会成为绊脚石。”
If something goes wrong, the catch block rolls back all changes made since the transaction was started, and then prints out an error message.
如果发生了错误，catch块可以回滚事务开始以来发生的所有更改，并打印出一条错误消息。
In case of an exception, the catch block simply called the exception publisher, then returned the executing thread back to the thread pool.
如果发生了异常，这个catch块只是简单地调用异常发布程序，然后将正在执行的线程返回到线程池中。
As I walked back to the orphanage, about a block away from the school, I saw a woman standing on her front lawn eating a sandwich. I stopped and stood there looking at her.
在走回孤儿院的路上，大概离学校一个街区那么远的地方，我看见一位太太正站在她家前面的那块草地上吃三明治，我停下脚步，站在那里看着她。
That allows the material to block and reflect back the phonons in the form of heat.
因此，这些材料就可以阻挡以热量形式存在的声子，并将它们反射回去。
After a minute or two, she spotted what looked like a road that would take her around the block and back to the intersection.
不一会儿，她发现好像有一条路，她可以从那条路上绕过街区，回到十字路口。
You aim at some astonishing peak or a swerve of the river, then examine the screen on the back of your digital camera. A rogue, blurring tree has dived across like a goalkeeper to block your shot.
你把镜头对准令人赞叹的山峰，或者蜿蜒曲折的河流，按下快门后你去看数码相机的显示屏幕——一棵淘气的树像牧羊人那样站在那里遮挡了你的镜头。
Park your car at the service station just around the block from there and walk to the back entrance of the house and then you can talk to Magpie about all this.
把车停在加油站那儿，只要从那儿绕过那条街走到房子的后门进去，你就可以跟喜鹊谈所有这一切了。
Back at the smokehouse, Turner showed me the two concrete-block Chambers where the eels-dressed and brined in salt, brown sugar, and local honey-are hung on rods.
回到熏制室，特纳带我看了两个混凝土块房间，在那里，人们把加工好的鳗鱼浸入盐水、红糖和本地的蜂蜜里，然后吊在木杆上。
The researchers were able to cut the same block into pieces and put them back together at least five times.
研究人员将一块材料切成几份，然后可以将他们重新合起来至少五次。
The server then formats a block of HTML that makes up the response and sends it back to the page.
然后，服务器格式化组成该响应的HTML块并将其返回到页面。
The smaller countries at the edges of the euro block are pulling back harder.
那些欧元区的边缘小国正在艰难的自救当中。
The guards back out of the cell block and lock the gate behind them.
警卫退出了牢房区，锁紧了牢房区出入的门。
The required block size is then returned back to the caller.
然后把请求的块返回给调用者。
The halyard typically rises from the head of the sail to a block at the head of the mast and back down to deck level, from where it is pulled up to raise the sail.
升降索通常从帆的前侧延伸到桅杆顶端，然后下降到甲板平面，在甲板上拉起升降索就能升起船帆。
Sit your subjects in front of it so that you have a nice, solid block of colour, which is the sofa back behind them.
让你的拍摄对象坐在前面，这样就得到了一个美好的、一致的色块。
Although Block said that the company had already cut back on contracts with external recruitment services, the changes did not go far enough.
尽管布洛克说公司已经减少了外部服务合约，但这改变还不足够。
Each of the four storeys goes back nearly 40ft with a room on each floor of the apartment, crammed into an alley between an old tenement block and a tower block in Warsaw, Poland.
楼层纵深40英尺，四层楼每层有一个房间。该建筑被安插在位于波兰华沙的两幢建筑之间。
There was no way to tell the server, "Take back that bad block relocation error!"
无法告诉服务器，“回到发生坏块重定位错误之前的状态！”
DB2 Connect sends back a block of rows (32 KB) whenever possible.
DB 2Connect每次尽可能发送回一整块的行(32KB)。
Flash back to June 2010, when Apple escorted reporters into a room, nary a block from here, filled with iPhone 4s fashioned in both black and white.
回想起2010年6月，当苹果陪同记者们进入同一个大厅时，厅内摆满了设计成黑色和白色的iPhone4s。
In a virtual storage system, a fixed-length block of contiguous virtual addresses copied as a unit from memory to disk and back during paging operations.
在虚拟存储系统中，一个固定长度的连续虚拟地址块，在分页操作过程中它作为一个单位在内存和磁盘之间来回复制。
A bloke's back bike brake block broke.
一个家伙的脚踏车后制动器坏了。
Remember David Blaine's death defying stunt back in 2000 when he encased himself in a block of ice for seven days without food, water and sleep?
还记得2000年时大卫·布莱恩把自己置身于冰块中，7天7夜不吃不喝不睡地挑战死亡的惊人表演吗？
Remember David Blaine's death defying stunt back in 2000 when he encased himself in a block of ice for seven days without food, water and sleep?
还记得2000年时大卫·布莱恩把自己置身于冰块中，7天7夜不吃不喝不睡地挑战死亡的惊人表演吗？
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