I am almost the nearest relation he has in the world, and am entitled to know all his dearest concerns.

我差不多是他最亲近的长辈，我有权利过问他一切的切身大事。”

I'll let the director know your concerns.

我会转告局长你的担忧。

For example: " I don't know much concerning the topic of today's meeting" .

例如：“我对今天会议的主题了解不多”。

However, I will not disturb you (seeing her preparing to write.) You know your own concerns best.

不过，我不会打扰你（看到她准备写字。）你最清楚你自己的事。

This remark was like the drawing of a weir-hatch and she was speedily inundated with all she wished to know concerning astronomical opticians.

这句话就像画了一个堰舱口， 她很快就被她想知道的关于天文配镜师的一切淹没了。

Hardly anything is known concerning Shakespeare's  life and movements between the mid-1580s and 1592, a period of time which has consequently  become known as his 'lost years'.

关于莎士比亚 1580 年代中期至 1592 年间的生活和活动，人们几乎一无所知，这段时期因此被称为他的“失落的岁月”。

There were a few moments after he had read it where he expressed some concern about, you know, whether certain relationships would survive or how he would be a pariah in the Senate.

在他读完这本书后的几分钟里，他表达了一些担忧，你知道，某些关系是否能够维持下去，或者他将如何在参议院受到贱民。