The first step to insight is to ask questions like why do things fall down and not up?

起初的洞察力是问问题,为什么物体坠地而不是上升？

耶鲁公开课 - 心理学导论课程节选

Visits to its theme parks are expected to fall in step with a decline in U.S. consumer confidence, offsetting advertising sales growth at Disney's ESPN and ABC television networks.

FORBES: Employment, Earnings Make The Day

Dr White thinks there may be an unknown one that varies on roughly the same timescale as the more regular solar cycle, and thus tends to fall into step with it, amplifying the solar variation.

ECONOMIST: The earth��s climate

True, Mr Trimble is merely paying the price that democracy extracts from politicians who fall out of step with their voters.

BBC: David Trimble