So on the one hand a larger brain favors a long life span but the opposite could also be true, that a longer life span favors a large brain.

所以一方面脑子大导致寿命长，反之也能成立，即寿命长则脑子大。

youdao

Between the buildings a 235m span footbridge connects the diagonally opposite corners of the site at ground level. The cable suspended footbridge provides a public access through the urban block.

在内部建筑之间有一个235米长的人行桥，它斜线连接首层的对角，钢铁悬挂支撑的人行桥为人们提供穿越城市区的一个公共道路。

youdao

Bradford's fortunes over the same span have spun in the opposite direction.

WSJ: U.K. Soccer's League Cup Hosts a Cinderella Story

The problems at Airbus are analogous to assigning two crews to build a bridge where each starts construction on the opposite banks of a river and, as the bridge comes together at mid-span, they discover that the two sides do not match.

ECONOMIST: Machine politics