【英语时差8,16】船锚与弱扣环-下

The navy has prepared for this by building what is called a "weak link" into their anchor chains. The weak link is the last link in the chain, and while it’s strong enough to hold together in general, it’s weak enough to break if the whole weight of the anchor and chain is put on it. The weak link is there as a safety valve. Because it’s the very last link, under normal circumstances it never gets played out at all; you always want to have some chain left on the ship. But if the anchor is still zooming¹ down full speed at the point where the entire chain runs out, the abrupt² jerk will cause that link to snap. Without the safety valve of the weak link, sailors might routinely drop more than their anchors.

1 zooming   

adj.快速上升的v.（飞机、汽车等）急速移动( zoom的过去分词 )；（价格、费用等）急升，猛涨

参考例句：

• Zooming and panning are navigational tools for exploring 2D and 3D information. 缩放和平移是浏览二维和三维信息的导航工具。 来自About Face 3交互设计精髓
• Panning and zooming, especially when paired together, create navigation difficulties for users. 对于用户来说，平移和缩放一起使用时，产生了更多的导航困难。 来自About Face 3交互设计精髓

2 abrupt   

adj.突然的，意外的；唐突的，鲁莽的

参考例句：

• The river takes an abrupt bend to the west.这河突然向西转弯。
• His abrupt reply hurt our feelings.他粗鲁的回答伤了我们的感情。