I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。
that twenty or thirty pages of ideas and information would be capable of turning the present-day world upside down, or even destroying it.
二三十页材料中的思想和情报会使当今的世界天翻地覆,甚至毁灭这个世界。