Strategic collaboration between China and Canada in the 21st century 并列题名：Strategic collaboration between China and Canada in the 21st century strategic views of the most popular fields in the 21st century Interaction between China and the west in 18th century the robotics revolution and conflict in the 21st century Historiography communication between China and America in the first half of the 20th century Design culture exchange in the tea trade between China and Britain in the 18th century eurasia economic integration and China's grand strategy in the 21st century 并列题名：Interaction between China and the west in 18th century