This is the first-class beer that boasts all over the country. It contains a lot of grape juice made in Shinshu.
This is the first-class beer that is outstanding in the whole country. It contains a lot of grape juice made in Shinshu.
1つ目の文章、This is the first-class beer that boasts all over the country. It contains a lot of grape juice made in Shinshu.は、
直訳のような形で、「これは全国に誇る一級品ビールです。信州産の葡萄果汁が沢山入っています」
という意味になります。
2つ目の文章、This is the first-class beer that is outstanding in the whole country. It contains a lot of grape juice made in Shinshu.は、
「これは全国において傑出した一級品ビールです。信州産の葡萄果汁が沢山入っています」という意味になります。
outstanding「傑出した」