Since it is not easy to judge the direction of force in a fall, much less the extent of force, the belayer must evaluate each situation and make use of the rock for the most secure position.
由于在降落过程中很难判断受力的方向,更不用说受力的大小,因此保护者必须对每一种情况进行估量,并利用岩石取得最安全的位置。
It is no accident that earthquake protection of the extent employed in Japan has not been chosen by less prosperous countries at similar risk of a serious earthquake.
一些较穷的国家,虽然发生严重地震的风险跟日本差不多,但并未采取日本那样高水准的防震措施,这并非偶然。
But we are much less conscious of the extent to which work provides the more intangible, but more crucial, psychological well-being that can make the difference between a full and an empty life.
可是,我们却很少意识到劳动带来的无形的、更关键的心理健康,它关系着我们的生活是充实还是空虚。
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