A really good ballerina can get more than one turn out of every leg extension in one of two ways.

一个优秀的芭蕾舞者能够通过以下两种方式之一在每次下肢伸直时完成多于一圈的旋转。

Assuming things will turn out okay motivates people to explore the world, whether that's venturing out of their cave or asking someone out on a date.

假设一切都会好起来，能激励人们去探索世界，无论是冒险走出洞穴还是与人出去约会。