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David Lubin, an economist at Citigroup, is concerned that China alone may lack the capacity to meet the megaproject's investment goals. So the country needs to accumulate global resources to finance BRI projects.

David Swinbanks, the founder of the Nature Index, said the concentration of talent, funding, research institutions, and other resources is crucial for the top five global science cities to maintain their leading positions.

DHAKA -- Bangladeshi commandos stormed a passenger plane of the Biman Bangladesh Airlines at an airport in the southeastern city of Chattogram and shot dead an armed man who tried to hijack the Dubai-bound flight on Sunday.

Decrepit infrastructure costs each US household an average of ,400 every year due to productivity losses, higher transportation costs and other problems, according to the ASCE. It estimates the cost of needed repairs at .6 trillion.

DJI, the world's largest commercial drone manufacturer by market share, is also devoting a great deal of attention to agricultural drones, with the goal of helping farmers improve the efficiency of spraying pesticides and increasing the use ratio of intelligent agricultural equipment.