Usually only one player throws the ball, he is called the quarterback.
通常只有一个球员传球，这个队员就是四分卫。
Usually we don't feel all the eclipses in a series, usually only one or two.
通常我们并不觉得在一个系列的所有日食，通常只有一个或两个。
Miss usually only one direction, because you miss people who may not miss you.
思念通常只有一个方向，因为你思念的人，未必会思念你。
Often more than one embryo is produced initially, but usually only one reaches maturity.
胚具两片子叶，开始时不止产生一个胚，但一般只有一个胚发育成熟。
"And the communication sound is usually only one or two or three utterances and then it's gone, " he says.
“这些交流声通常只有一两句，然后，声音就消失了，”他说。
Nestled at center, another egg should hatch in two days-though usually only one chick will survive the season.
位于中心位置的巢里，超不过两天时间，另一小鹤可能就会破壳而出——仅管通常在这个季节最多只有一个幼雏会幸存下来。
This also makes it simpler to manage as there is usually only one fortnightly or monthly account to pay afterwards.
这也使得管理更简单，因为通常只有一个每两周或每月付帐户。
Now simply reset the device by holding in the record button (on the left side) and you should see a list of images on the card (usually only one).
现在，只需要按下record按钮(在左边)来重设设备，然后您应该会看到卡上的一个映像列表(通常只有一个)。
Traditionally, photographed subjects are captured immediately, often over several sequential frames, but usually only one image is selected to represent the sitter.
从传统意义上说，拍摄一个主体就是瞬间的捕捉，经常会有好几个画面，但是最终只有一个画面被选出来展示。
A piezoceramic vibrator has infinite number of vibration modes, but usually only one or a few of them are used and all the other undesirable modes must be suppressed.
一个压电陶瓷振子含有无限个振模，而常常应用其一个或数个，对于其它不需要的模式，必须加以抑制。
Since only one female usually lays eggs in a given larva, it would pay her to produce one male only, because this one male could fertilize all his sisters on emergence.
因为通常只有一只雌性在一个特定的幼虫中产卵，所以它只会产生一只雄性，因为这只雄性可以在孵化时使它所有的姐妹受精。
Usually there is only one or two a year bright enough to be seen with the naked eye.
通常，一年只有一到两颗彗星明亮得肉眼可见。
Manufacturing site location is an important consideration in determining the optimal deployment of a firm's production resources, but one that is usually given only limited attention.
在决定企业生产资源的最佳配置时，生产地点的选址是一个重要的考虑因素，但通常未受到太多关注。
One female panda usually has only one baby, and it is not easy for wild pandas to have twins anyway.
一只雌性熊猫通常只有一个孩子，而且野生熊猫要生双胞胎也不容易。
Usually, only one or two people on the project need Repository Administrator rights.
通常，工程中只有一、两个人需要“资源库管理员”权利。
"You usually only get one chance to be a public company chief executive," Mr Drury says.
“你通常只能获得一次成为上市公司首席执行官的机会，”德鲁里表示。
Most people dream for two to six hours each night, but at most they recall only about a half-hour's worth, usually the last one in the morning.
大多数人每天晚上做梦的时间有两到六个小时，但是顶多能够回想起大概半个小时的梦，通常是早上最后的一个梦。
The second order effects of technology usually only arrive when everyone has one, or it is present everywhere.
技术的二阶效应通常只有人们都使用时才会体现，但是却无处不在。
A correct formulation is, usually, not as transparant and elementary as the original one – its significance is seen only a posteriori when the problem is eventually solved.
正确的公式化表达，通常上并不是如同原始的公式表达一样简单基本，它的重点在于只能看到当问题得到最终解决时的后验结果。
In the case of a RCVR, RQSTR, or SVR channel, it can be useful to match a single certificate since these channels usually connect to only one partner node.
在使用RCVR、RQSTR或SVR通道时，匹配单个证书非常有用，因为这些通道通常只与一个合作伙伴节点连接。
One final comment about OSR: it is usually only a performance problem in benchmarking, when programmers are lazy and put everything in a single method such as main.
关于OSR的最后一点提示：通常，只有程序员很懒惰，把所有东西都放在一个方法(比如main)中时，它才会给基准测试带来性能问题。
Databases have many of the same problems as spreadsheets with regard to storing system configuration management information, but usually there is only one database containing the information.
在存储系统配置管理信息方面，数据库有许多与电子表格相同的问题，但是通常只有一个包含此类信息的数据库。
Usually a woman has only one baby at a time, but sometimes she has two babies (twins), three babies (triplets), four babies (quadruplets), or even more!
通常一个女人一次只能生产一个宝宝，不过有时也生两个（双胞胎），三个（三胞胎），四个（四胞胎），甚至更多！
Partly because the classes usually do more than you actually need, they impose more overhead than a class designed for one purpose only.
其中一部分是因为类能做的超出了您真正需要的，与只为一种用途设计的类相比，它们会产生更多的开销。
This isn't the only Roman folding knife that's been found, but they're usually bronze and this one is silver and has a lotmore gadgets.
这不是唯一发掘出的罗马折叠刀具，但是其他的通常是青铜锻造，而这一把是银子做的，并且有更多的小工具。
Usually you don’t have the freedom to be spontaneous because you’re not the only one making the decisions.
通常你没有发挥主动性的自由，因为你不是唯一一个做决定的人。
This isn't the only Roman folding knife that's been found, but they're usually bronze and this one is silver and has a lot more gadgets.
这不是唯一发掘出的罗马折叠刀具，但是其他的通常是青铜锻造，而这一把是银子做的，并且有更多的小工具。
This isn't the only Roman folding knife that's been found, but they're usually bronze and this one is silver and has a lot more gadgets.
这不是唯一发掘出的罗马折叠刀具，但是其他的通常是青铜锻造，而这一把是银子做的，并且有更多的小工具。
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