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，外层空间活动透明度和建立信任措施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和更动。

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.

我确实会更动一下程序。过，通过我课内各种实验，我益匪浅，其中一些实验对我整体进步应该是相当重要。

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，为了让结果保持在二位数，我稍微更动一下规则，让它总数成为 22。

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

卧室应该是一个更动设置，就像约瑟有一间工作室一样。

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

然而，2019 年完成保护工作发现，几世纪以来，大家观赏画是大幅更动过版本。