For example, the pattern o {2} would match two (and only two) o characters.
例如，模式o{2}将匹配两个(仅仅两个)o字符。
B And mu B in the liquid phase B has to be equal to mu B in the gas phase. S o four minus two constraints means you have two degrees of freedom.
液相的μ,必须等于气相的μ,所以四减去二意味着,你有两个自由度。
Some even turn on the light at two o 'clock, and most of them are awake by six o 'clock although it is not light in England for another hour or two at this time of the year.
有些人甚至在两点钟的时候开灯，但大多数人还是在六点钟醒的，虽然在英国这个时间就算再过一两个小时也还没有天亮。
I slept two hours later than usual, because I play computer games until two o 'clock.
我比平常晚睡了两个小时，因为我玩电脑游戏玩到两点。
The Ni(II) cation has a distorted octahedral geometry defined by five N atoms from two dimethylglyoxime molecules and two O atoms from two formate anions.
镍离子与两个丁二酮肟配体上的四个氮原子和两个甲酸根离子上的碳原子配位进而形成八面体配位环境。
A two o 'clock start means you arrive any time after two.
两点钟开始意思是说两点钟以后的任何时间你都可以到。
One morning at two o 'clock, Mr. Wu knocked my door in hasten to borrow long distance telephone card from me, but he returned it to me in two minutes.
有一天凌晨两点，吴先生急匆匆地敲我的门找我借电话卡，借去没两分钟又还回来了。
There are two sorted arrays A and B of size mand n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)).
这个题是求两个有序数组的中间数，其实这个中间数，如果是奇数，就是中间的那个数，如果是偶数，就是中间的两个数的和的平均值。
Some even turn on the light at two o 'clock, and most of them are awake by six o 'clock although it is not light in England for another hour or two at this time of the year.
在二点，有些人甚至把灯打开，其中大部分是六点醒来，虽然它不是光在英国一个小时或两个在每年的这个时候。
Some even turn on the light at two o 'clock, and most of them are awake by six o 'clock although it is not light in England for another hour or two at this time of the year.
在二点，有些人甚至把灯打开，其中大部分是六点醒来，虽然它不是光在英国一个小时或两个在每年的这个时候。
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