如果没有...

As bad as the world is today, it would be immeasurably worse without the church of Jesus Christ.

尽管今天的世界已经是非常的败坏，但如果没有耶稣基督的教会，它将会变得更加无法估量的败坏。

But if there is no immorality, what's the necessity of ethics?

但如果没有不道德之事，那末伦理学的必要性何在？

Without the impellent of interest, parents" or teachers" instruction can not work well.

对于幼儿钢琴学习者来说，如果没有学习兴趣的驱使，单凭家长和教师的强迫是无法奏效的，更不会产生良好的学习效果，最终导致教育的失败。

If there is no the person of wicked disorderly way, this mechanism need not year by year carry on, can with three years, five years or decade once, the frivolous improbity have how much kill how much, this mechanism can't be cancel.

如果没有丧德乱道之人，此机制就不必年年进行，可以三年、五年或十年一次，轻浮邪恶者有多少就杀多少，这个机制不能被取消。

I hope this letter finds you in good spirits, and if not I only hope that this letter will help to improve upon them.

我希望这封信认为你的精神状态很好，如果没有我只希望这封信将有助于改善它们。

Like your situation, if there is no particular purpose, do not improvise like you.

像你的情况，如果没有特别的目的，凑合一下不办了吧。

For example:We would have been in trouble but for your help.

如果没有你的帮助，我们就会陷入麻烦中去。

We would have been in real trouble but for your help.

如果没有你的帮助，我们原本会陷入严重的困难之中。

I do not drink any thing, so, in the absence of guests, I will not drink.

我不爱喝哪玩意儿，所以，如果没有客人，我是不会喝酒的。

In the absence of water and air , nothing could live.

如果没有水和空气，什么也不能生存。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。