Currently there is no hard limit on the number of messages in a queue.
目前，在队列中的消息数目并没有严格的限制。
To display the number of hard disks on your system, type.
要显示系统上的硬盘数量，可输入以下命令。
Both listings show a hard link with index number 5423.
这两个列表显示索引号5423的硬链接。
What is the appropriate number of hard drives for this setup?
需要提供多少个用于安装的硬盘驱动器才合适？
Some factors are hard to put a number on and are therefore discounted.
有些因素由于很难给出数字，于是被忽略掉了。
It's actually not impossible, but hard, and there are a number of challenges.
事实上，它并非不可能，只是很艰难，要面对很多挑战。
Look hard enough, and you'll see a surprising number of opportunities amid the gloom.
如果观察得足够努力，你也会在不景气中发现多到难以置信的机会。
A number of my classmates work very hard.
许多我的同学都学习非常用功。
Last year's number of approvals shouldn't be hard to beat.
去年批准的数量不应该很难做到。
But despite the rising number of donors, Cryos has a hard time meeting demand.
尽管捐精者人数飙升，克瑞奥斯公司仍感到供不应求。
It can read the physical serial number and model number of your hard drive.
可以读取硬盘的物理系列号及硬盘的型号。
You can get number one if you study hard.
如果你努力学习你就可以得第一。
It's hard to not put this game as number 1.
很难不把这个游戏排第一位。
It's hard to not put this game as number 1.
很难不把这个游戏排第一位。
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