He is good at reading and writing, but he wishes he knew how to understand and speak better.
他的閱讀和寫作是強項,但他希望知道怎樣去理解和說得更好。
wants agreement on general principles, which could be applied to many types of products and perhaps extended to other countries.
則希望就普遍的原則取得一致,而這些原則適用于許多不同產品,同時可能延伸到其它國家。