That is why the 15-member United Nations Group of Governmental Experts on Transparency and Confidence-Building Measures in Outer Space Activities have examined numerous proposals and changes in political and technological environment since 1993.

因此，外层空透明度和建立信任措施的15名联合国政府专家小组成员已经审查了1993年以来诸多有关政治和科技环境的提议和更。

I will indeed vary the procedure. We will benefit greatly through various experiments within our sessions however, and some of these should be quite important to our overall progress.

我确实会更一下程序。过，通过我们课内的各种实验，我们将受益匪浅，其中一些实验对我们的整体进步应该是相当重要的。

So what if — to keep the result a two-digit number — we break the rules a bit and let this sum equal 22.

所以，为了让结果保持在，我们稍微更一下规则，让它们的总成为 22。

A bedroom should also be a permanent fixture, as should a working room for Joseph.

卧室应该是一个更的设置，就像约瑟有一工作室一样。

Yet, conservation work completed in 2019 found that, for centuries, people had been viewing a dramatically altered version.

然而，2019 年完成的保护工作发现，几世纪以来，大家观赏的画是大幅更过的版本。