Where the penalties are not a must, they should be imposed only if the facts of a cast support it.
如果处罚不是必须的，则只有在有事实支持的情况下才应施加处罚。
The first draft will appear on the page only if you stop avoiding the inevitable and sit, stand up, or lie down to write.
只有当你不再回避不可避免的事情，而是坐着、站着或躺着写作时，初稿才能跃然纸上。
Of course, biological control agents can safely be released only if it can be verified that they feed solely on the target weed.
当然，只有能够证明它们仅以目标杂草为食，生物控制剂才能安全释放。
Problems occur only if a contradiction develops between a new observation, say, "That ball is blue", and the preexisting statements.
只有当一个新的观察，比如“那个球是蓝色的”，与已有的陈述之间产生矛盾时，才会出现问题。
The arbitral tribunal shall decide as amiable compositeur or ex aequo et bono only if the parties have expressly authorised the arbitral tribunal to do so.
只有得到当事人明示的授权，仲裁庭才可以根据公平的原则作出裁决。
Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises.
因为温暖的空气比冷空气能容纳更多的湿气，所以只有当大气中的水蒸气量随着温度的升高而增加时，相对湿度才会保持不变。
You are allowed to get access to our computer system only if you get the manager's permission.
只要得到经理的许可，你就可以使用我们的电脑系统。
Where the penalties are not a must, they should be imposed only if the facts of a case support it.
如果惩罚不是必须的，那么只有在该案件有事实支持的情况下才应该施加惩罚。
Honey made from such nectar can cause the effects the texts describe, but only if eaten fresh since the honey loses its toxicity within a few weeks of being made.
用这种花蜜制成的蜂蜜会产生书上所描述的效果，但只有在新鲜食用的情况下才会如此，因为蜂蜜在制作几周内就会失去毒性。
Dark patterns also can be addressed on a self-regulatory basis, but only if organizations hold themselves accountable, not just to legal requirements but also to industry best practices and standards.
黑暗模式也可以在自我监管的基础上得到解决，但前提是各组织要自己担负起责任，不仅要遵守法律要求，还要遵守行业最佳实践和最高标准。
Agrillo's team found that mosquitofish can discriminate between numbers up to 16, but only if the ratio between the fish in each shoal was greater than 2:1.
阿格利罗的团队发现，食蚊鱼最多可以分辨大到16的两个数字的大小，但前提是每个鱼群中鱼的比例大于2:1。
This is true as the above derivation for a and b of opposite parity is an if and only if statement.
这是正确的，因为上面对a和b 的奇偶性的推导是一个当且仅当命题。
Progress will come about only if Mr Obama gets involved himself.
只有奥巴马亲自出马才会出现进展。
It can yield untold benefits, but only if people use it wisely.
科学进步可以产生无限的好处，但只有在人们能够明智地利用科学进步的时候才行。
Members from the two cubes are merged only if they have identical names.
仅当来自两个数据集的成员具有相同的名称时才会合并它们。
Insurance covers FPA and W. A. only if the Buyers require it to be added.
假如买方要求加上保险，那么只保平安险和水渍险。
In Listing 8, template class a may be instantiated only if type t is signed.
在清单8中，仅当t有符号时，模板类a才能进行实例化。
Note: Your anger can be useful, but only if you express it in a helpful way.
注意：只有当你以积极的方式表达愤怒时，你的愤怒才可能产生正面的作用。
Would you like to go to the cinema with me? I mean, only if you want to.
你愿意和我一起去看电影吗？我的意思是只要你想的话。
The latter will work only if you are on the same network as the WPAR manager.
仅当您处在与WPAR 管理器相同的网络中时，后面一种方法才能正常工作。
Yet many applications validate files only if they are at least partly correct.
但是很多应用程序只有当文件至少部分正确时才进行验证。
The words we speak will influence others only if our actions support our words.
只有当我们的行动支持我们所说的话的时候，我们说的话才会影响他人。
In the end, a solid peace will emerge only if clear regional borders are agreed.
因此，最终只有当达成双方均认可的明确的区域边界时，稳固的和平才有可能出现。
The client will send a certificate to the server only if the server requests one.
只有在服务器发出请求时，客户机才会向服务器发送一个证书。
Carry trades make sense only if the investor assumes that the yen will remain weak.
只有当投资者假设日元将保持疲软，套息交易才有意义。
More gaming may actually be better but only if parents play along, a new study finds.
但新的研究表明，只要在家长陪同的情况下，多一点游戏时间，事实上可能更好。
Marty finally agreed, but only if Fred would go there with him to give him courage.
马蒂最终同意了，但是要求佛瑞德和他一起去，给他鼓气。
Participants earned a prize only if they avoided smoking for the entire 95-minute film.
参与者只要在接下来看电影的95分钟里面没有吸烟，就能获得奖金。
The symptom database is useful only if it is used with a thorough diagnostic trace log.
只有在与全面的诊断跟踪日志一起使用时，症状数据库才有用。
But seriously, these tricks will work only if you have at least the basics of English.
但是，说真的，这些窍门要想发挥作用，至少要有基本的英语能力。
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