What is the missing number in this logical series?

Realize that thought is not the same as logic.

要认识到思想不总是有逻辑性.

A handsome dividend, although lacking in logical , healthy thinking.

这话让人听了可真好哇, 尽管这类想法缺乏逻辑性, 也站不住脚.

I don't follow the logic of your argument.

我不明白你的论点逻辑性何在。

English spelling has little rhyme or reason.

英文字的拼法没什麽规律.

There doesn't seem to be any rhyme or reason in his demands.

他的要求真是毫无道理.

This man turned and hit Peter for no rhyme or reason.

那个转过身来,无缘无故地打彼得.

What rhyme or reason could he have for doing that?

他那样做有什么道理 呢 ?

And the trader bowed himself out of the apartment.

随后,那贩子便欠身告辞了.

A little after this, these two young men took themselves away.

不多一会儿, 这两位青年就告辞了.

The sergeant took a polite leave of the ladies.

巡官客客气气告辞了女眷们.

Leaving, heading for the car, he felt much better.

他告辞出来向汽车走去的时候心情好多了.

He took his leave at eight.

他8点钟告辞离去.

Aunty and Uncle felt somewhat relieved when, in your farewell party, we saw your new family from the VCD that your new parents had prepared for you.

当我们在你的惜别会上看到你的新父母为你所准备的家庭影片时，阿姨和叔叔感到些许的宽心了。

Newly Usage of Yang Hui's Rhymed Formula

杨辉口诀新用法

Negotiation is the best way for the sett-lement of a conflict between two countries.

谈判是解诀两国矛盾冲突的最佳方式.

This means that they can choose right or wrong are responsible for their choices.

这表示他们可以选择对错,并为其诀择负责.

Index finger venule inspection is original in Tang Dynasty Wang Chao's < Immortal Water Mirror Formula >.

小儿指纹诊法不是起源于钱乙,而是起源于唐代王超的《仙人水镜图诀》,现存医书记载指纹最早的是刘昉的《幼幼新书》.

With difficulty he says goodbye to her and makes her accept the need to part.

他缱绻难舍地和玛丽亚告别,并努力使她相信,他俩的诀别已是不可避免的事情.

It was the last parting.

那是一次最后的诀别.

He was sorry not to be able to give them a better farewell gift.

他很抱歉,不能送一种好一些的诀别礼物给她们.