难句解析
1. A lot of their work comes down to measurement—everything from the exact angle of a swimmer's dive to the second-by-second power output of a cyclist.
参考译文：许多工作都涉及具体测量，测量内容包括从游泳运动员潜水的精确角度到自行车运动员每秒功率输出的所有数据。
语言点：
come down to：归结为；涉及If a complicated situation or problem comes down to something, that is the single most important thing
It all comes down to money in the end.归根到底，一切都是因为钱。
2. No gain is too slight to bother with.
参考译文：无论多么微小的收获都值得为之努力。
语言点：
(1)too…to的用法：表示否定的含义，译为“太……以致于不能”。本句话虽然短，却因为有no否定词和too…to句型而出现了肯定的意思，因此要格外注意。可以根据“负负得正”的原则直接将原句翻译成肯定的意思，便于理解。
(2)gain n.获得
① [C] an advantage or improvement, especially one achieved by planning or effort
② [U&C] an increase in the amount or level of something
③ [U] financial profit, especially when this seems to be the only thing someone is interested in The party made considerable gains at local elections.该党派在地方选举中获得许多利益。
(3) bother v. 努力做: to make the effort to do something
① (not) bother to do something
He didn't bother to answer the question.
② (not) bother about/with
He didn't bother with a reply.
③ (not) bother doing something
Many young people didn't bother voting.
don't/didn't/won't etc. bother
‘ Do you want me to wait for you?’ ‘No, don't bother.’
Why bother to go abroad when there are so many nice places here?
3. You design the model to make that time A start of this much, each free-swimming period has to be this fast, with a certain stroke frequency and stroke length, with turns done in these times.
参考译文：人们设计一种模式以达到预期的速度，该模式规定了出发时间的长短、每次划水的速率、一定的划频和划距、转身所需的时间等等。
注意：代词this和that，these等所指代的东西，需要通过上下文理解掌握。本句话中代词指的是“竞赛模式”下所预期的时间、速度等。
语言点：
(1)stroke(划船，游泳等)一划
butterfly stroke蝶泳sidestroke侧泳breaststroke蛙泳backstroke仰泳
(2) frequency 频 率 the number of times that something happens within a particular period of time or within a particular group of people
① frequency of
the frequency of serious road accidents重大道路交通事故的发生频率
② the high/low frequency (of something)高/低频率
the higher frequency of diabetes in older people老年人中的糖尿病高发频率
Side effects from prescribed drugs are being reported with increasing frequency.处方药的副作用遭到越来越多的报道。
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