短语讲解：
1. A large number of countries have let us know they will join.
a large number of很多
例句：A large number of people were present.
很多人出席了。
2. As of this moment, there are two countries who tell us they are staying out.
stay out避开, 不插手
例句：Please stay out of my business and I'll stay out of yours.
请别管我的事, 我也不管你的事。
3. As a result, the new deal will not include the United Kingdom and Hungary.
as a result结果，因此
例句：There was a substantial growth of industry and foreign trade increased as a
