谈到的英文：
to refer to
to speak about
to talk about

参考例句：

The spokesman wrong-footed them with this question.
发言人谈到这个问题使他们乱了阵脚。

The locality was spoken of as though it had been the dwelling of a hangman
大家提起他那住处，就好象谈到刽子手的家。

In his National Day Rally Speech, Prime Minister gave a candid assessment of his successor.
总理在国庆群众大会演讲中谈到接班人。

When it comes to high-tech fraud , one of the most common scams is "phishing ".
谈到高科技诈骗，最常见的诈骗方法之一就是“网络钓鱼”。

Then the article goes on to speak of the truly indescribable and bestial conditions of life in the swollen London slums.
文章接着谈到不断膨胀中的伦敦贫民窟无限悲惨的非人生活情况。

When referring to the similarity between people,things and actions, both as and like are used
在谈到人,事物或动作彼此有相同点或共同点时,使用as和like均可

The Quran on Human Embryonic Development: In the Holy Quran, God speaks about the stages of man’s embryonic development
古兰经关于人类胚胎发育的论述:在神圣的古兰经中,真主谈到人类在胚胎发育的几个阶段

There are the much less talked-about, more exotic designs for anti-matter weapons and brain bombs
还有那些人们不大谈到的，构想更为新奇的反物质武器和脑弹的设计。

Touch on;mention
略为谈到

He dealt with practical military developments.
他谈到军事的实际情况。

refer是什么意思：
v. 提到，谈及；参考，查阅

The headmaster supplied him with a reference.
校长给他提供证明人。

You can refer to a dictionary if necessary.
如果有必要，你可以参考字典。

No referring back to books and notes!
不准看书和笔记！

speak是什么意思：
v. 谈话；说话；提起；会讲；…行话；演讲；代表；表明；显示；不言而喻

Don't speak for your friend, speak for yourself.
不要代表你的朋友发言了，谈谈你自己的看法吧。

Don't speak for your friend,speak for yourself.
不要代表你的朋友发言了，谈谈你自己的看法吧。

It is one thing to speak much and another to speak pertinently
话讲得多是一回事,讲得恰当是另一回事

about是什么意思：
prep. 关于；大约；从事于；在…到处
adv. 附近
adj. 在附近的；即将...的

There was nobody about.
附近没有人。

Stereotypes about adultery are as common as research about it is flaky.
奇怪的是：这种陈词滥调和关于通奸的研究一样普遍。

She has a complex about rats.
她对老鼠有病态恐惧。