【英语时差8,16】虫子，涟漪与水上行走-上
时间：2019-02-23 作者：英语课 分类：英语时差8，16
英语课
On our last program, we learned how water bugs 2 manage to stand on the surface of a pond: The pads of their feet resist contact with the water just like wax paper does. This allows the bug 1 to rest on the thin film of surface tension that naturally covers the pond. This surface tension film is caused by the strong attraction the surface water molecules 3 have toward each other, as well as toward the water beneath them. While this is fine for standing 4 on water, you might wonder how a water bug actually starts moving. After all, there’s virtually no contact between the bug’s feet and the water, so there’s no friction 5 for the bug to push against. It would be like wearing slippery shoes on flat, wet ice-you might slide your feet around, but you couldn’t get anywhere.
n.虫子；故障；窃听器；vt.纠缠；装窃听器
- There is a bug in the system.系统出了故障。
- The bird caught a bug on the fly.那鸟在飞行中捉住了一只昆虫。
adj.疯狂的，发疯的n.窃听器( bug的名词复数 )；病菌；虫子；[计算机]（制作软件程序所产生的意料不到的）错误
- All programs have bugs and need endless refinement. 所有的程序都有漏洞，都需要不断改进。 来自《简明英汉词典》
- The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 来自《简明英汉词典》
分子( molecule的名词复数 )
- The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
- Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。
n.持续，地位；adj.永久的，不动的，直立的，不流动的
- After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
- They're standing out against any change in the law.他们坚决反对对法律做任何修改。