一次

I'll compromise this time, but next time I won't be so ready to.

这一次我妥协，但下一次我就不会这么轻易放弃了。

When you are working or reading ,let you clock ring up each 30 minutes .it remind you stay away you compter or book to look forward.it can prevent you eyes too tired or tense

当你正工作或读书时，让你的闹钟30分钟响一次。用这个作暗示，30分钟内远离一次你的电脑或书向远处看。这样可以阻止你的眼睛过度疲劳或紧张

That means that if you intend to repeat an experiment until the first success, then, given that the first success has not yet occurred, the conditional probability distribution of the number of additional trials does not depend on how many failures have been observed.

无论之前试验了多少次，都不会影响下一次出现成功所需要的次数。不知道为什么，看到memoryless这个词，觉得有一种全新的感受。曾经跌倒，又有什么关系呢小王子说，你知道，路还长，我带不动自己的身体，因为太重了。。。身体的沉重，有很大部分是因为回忆。

This is a speech, it is a confession.

这是一次演讲，更是一次告白。

Time and again, China's resilience has confounded the naysayers.

一次又一次，中国的坚韧让反对者大跌眼镜。

I've seen it time and time again in my consulting practice.

我见过它一次又一次在我的咨询实践。

A Containable Accident, then Suddenly a Crisis

一次可遏制的事故，突然变成了一次危机

One of the best dinner parties I ever went to was a cookout last summer where the family chef ran out of propane.

我参加过最好的一次晚宴聚会是去年的一次野炊；那时家厨的丙烷用完了。

I have not eaten of the family. But I did once (in a Guangzhou restaurant that kept herons, civet cats and a live donkey in the store room) accept a bite of cormorant, which must be similar, and it is nothing to write home about.

我从来没有吃过这些东西，但曾有一次（在广州一家提供白鹭、麝猫和活驴的饭店里）吃过一次鸬鹚，味道肯定也差不多，回来也没什么好写的。

O n March 7, Frenchman Coulee, in eastern Washington, was again the scene of tragedy.

2003年 3 月7 日，位在华盛顿州东部的 Frenchman Coulee 又再一次成为一次悲剧的场景。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。