| 单词 | 首先出现 |
| 释义 | 〔pan〕"But Dr. Brett cautioned that what sounds exciting from the Moon does not always pan out in the laboratory"(London Daily Telegraph, December 14, 1972). If Dr. Brett had been talking about hunting for gold on the moon,there would be a solid connection between his use of the expressionpan out and its original use in gold mining. Pan out, like the verb pan itself, comes from the noun pan in the sense "a shallow circular metal vessel used in washing gold from gravel.”The expressionpan out was used in a variety of senses, including "to wash gold-bearing earth in a pan"; "to obtain gold by washing ore in a miner's pan";and with reference to a mine or mineral-bearing soil, "to produce gold or minerals.”From such literal usagespan out was transferred to other situations. In Frederick Whymper'sTravel and Adventure in the Territory of Alaska, published in 1868, we are told that “‘It panned out well’ means that ‘it gave good returns.’”All these uses occurred first in American English,making the expression a true Americanism.“可是布莱特博士告诫说来自月球的听起来令人激动的消息并不总会在实验室获得成功”(伦敦每日电讯报 1972年12月14日）。 如果布莱特博士谈论的是关于在月球上寻找金子，那么，在他表达panout 这个用法和这个短语在金矿开采方面的原始用法就会有一种固定的联系。 Pan out 象动词 pan 本身一样来源于名词 pan ， 意思是“一个浅而且圆的金属器皿，用来从矿砂中淘洗金子”。pan out 的表达用在各种意思中， 包括“在淘金盘中淘洗含金的泥土”，“在矿工的淘金盘里淘洗矿砂得到金子”，并且与矿井或含矿土壤有关，“产金子或矿物”。在这样的文学用法中，pan out 被借用于其它情况。 在弗雷德里克·怀姆坡1868年出版的在阿拉斯加旅游历险 中， 我们得知"It panned at well"意思是“得到好的回报”。所有这些用法都首先出现在美国英语中，表达了一种真正的美国主义〔rattle〕A large proportion (86 percent) of the Usage Panel approved the use of the verbrattle in the sense "to unnerve" in the first edition ofThe American Heritage Dictionary, published in 1969. But we may ask how the verbrattle came to have such a sense. The earliest use of the word is found in a name,Johannes Ratellebagg, recorded in a document of around 1273; the earliest use of the word as a common noun (in the sense "to flap, used of a banner") is found in a work written about 1300and copied in manuscript around 1330.It is thought that the word probably comes from Middle Dutchratelen, which may be imitative in origin. In any case,the wordratelen was used mainly in intransitive senses such as "to make a rattling sound.”Already in Middle English, however, the transitive sense "to babble something" existed,and other transitive senses,as in "to make something rattle,” "to stir up, rouse,” "to drive in a rapid, rattling manner,” came into existence from the 16th century on.The transitive sense "to unnerve,”that is, "to make somebody rattle,” is first found in an American work of 1869.词语用法专题小组中有相当一部分人（百分之八十六）都同意rattle 这个词有“使人不安”的意思， 1969年出版的美国经典辞书 第一版收录了这一意思。 但人们不禁要问动词rattle 为何有了这个意思。 该词最早的使用发现于1273年前后记载的一个文件中的Johannes Ratellebagg 这个名字中； 1300年这个词第一次被用作普通名词（意为“飘扬，用于旗帜”），1330年又见于手抄的印本中。人们认为这个词可能来自原来可能是拟声词的中古德语ratelen 。 不过无论怎样，ratelen 这个词本来只是作为不及物动词来使用， 如发出嘎嘎声等意思。在中古英语中，“含糊不清地说出”这一及物动词的意思就已存在，该词其它的及物意思，如“使发出嘎嘎声”、“激起，唤醒”“嘎嘎响地急速向前拖”从16世纪开始就形成了。及物意思“使不安，”即“使某人惊慌”首先出现于1869年的美国作品中 |
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