今日長(zhǎng)難句
The explanation for insensitivity to smell seems to be that the brain finds it inefficient to keep all smell receptors working all the time but can create new receptors if necessary.（完形菱阵，2005）
explanation / ?ekspl??nei?n / n.解釋薪贫；說(shuō)明
insensitivity / in?sens??tiv?ti / n.不靈敏性
inefficient / ?ini?fi?nt / adj.效率低的
receptor / ri?sept?(r) / n.感受器；受體
結(jié)構(gòu)分析（圖片點(diǎn)擊可放大）
翻譯
（人類鼻子）對(duì)氣味不敏感的原因似乎是這樣：大腦發(fā)現(xiàn)讓所有的氣味感受器一直工作效率太低带斑，不過(guò)可以在必要時(shí)產(chǎn)生新的感受器拦惋。
預(yù)告明日長(zhǎng)難句
However, when two monkeys were placed in separate but adjoining chambers, so that each could observe what the other was getting in return for its rock, their behaviour became markedly different.（Text1具壮，2005）
