| 单词 | 锯齿 |
| 释义 | 〔serrated〕Notched like the edge of a saw; saw-toothed; serrate.锯齿形的：使刻得象锯的边缘的；锯齿的；齿状边的〔shovelnose〕A sturgeon(Scaphirhynchus platorhynchus) of the Mississippi River, having a broad flat snout. Also called hackleback ,shovel-nosed sturgeon 铲鲟：密西西比河中的一种鲟鱼（铲鲟或锯齿背） 长有宽扁的口吻 也作 hackleback,shovel-nosed sturgeon〔serration〕A series or set of teeth or notches.锯齿：一列或一套齿或刻痕〔sierra〕Spanish [saw, sierra] 西班牙语 [锯齿，锯齿状山脉] 〔buchu〕Any of various shrubs of the southern African genusAgathosma, especially A. betulina and A. crenulata, whose leaves are used as a mild diuretic and also yield an aromatic oil used for flavoring. 南非香叶木：长于非洲南部的阿格皂斯玛属 的灌木，尤指 桦木阿格皂斯玛 和 锯齿阿格皂斯玛 。其叶可用作温和的利尿剂，也可产生一种香油，用来调味 〔paravane〕A device equipped with sharp teeth and towed alongside a ship to cut the mooring cables of submerged mines.破雷卫，扫雷器：一种尖锐的锯齿，装在轮船周边用来牵引切断水下鱼雷系泊索的装置〔honewort〕An eastern North American perennial plant(Cryptotaenia canadensis) having umbels of small whitish flowers and compound leaves with larger, double serrate leaflets. 北美鸭儿芹：一种北美东部（加拿大鸭儿芹 鸭儿芹属） 常绿植物，有小白花组成的伞形花和较大的双层锯齿叶构成的复叶，生长于北美东部 〔sierra〕Perhaps in formal contextsit is wise after mentioning a mountain range such as the Sierra Nevadato refer to it next asthe Sierras rather thanthe Sierra Mountains, sincemountains is inherent in sierra. Nonetheless, many Californians and Nevadans in particular will be very familiar with phrases such asthe Sierra Mountains. Such phrases are used because to a non-Spanish speakersierra does not necessarily have a meaning, unless one is familiar with the English wordsierra, "a rugged range of mountains having an irregular profile,” borrowed from Spanish. In Spanishsierra originally meant "saw" and so was aptly applied to a range of hills or mountains rising in peaks that suggested the teeth of a saw.It comes from Latinserra, "saw,” to which can also be traced our wordserrated. 也许在正式的语境中，提到了一山脉如内华达山脉之后，紧接着再提到时称为the Sierra ， 而不是the Sierra Mountains ， 因为mountains 是包含在 sierra 之中的。 尽管如此，许多加利福尼亚人，尤其是内华达人对类似the Sierra Mountains 这样的词组很熟悉。 使用这样的词组是因为对一个非西班牙语的人来说，sierra 一词并不一定有意义， 除非是一个熟悉这个从西班牙语中借用来的英语单词sierra （一崎岖的山脉，有曲折的轮廓）的人。 在西班牙语中，sierra 原意为“锯子”， 所以很恰当地被用来指峰峦叠起，使人联想起锯齿的山脉或群山。这个词来源于拉丁文serra （锯子）， serrated 也可以追溯到这个拉丁词 〔Stillson〕A trademark used for a monkey wrench having serrated jaws that tighten as pressure is applied to the handle.斯帝尔逊：一种管子钳的商标，这种钳具有带锯齿的颚板，当手板受到压力时收紧〔sierra〕from Latin serra [saw] 源自 拉丁语 serra [锯齿] 〔sneezewort〕A Eurasian herb(Achillea ptarmica) of the composite family, having aromatic, linear, finely serrate leaves and clusters of white flower heads grouped in corymbs. Also called sneezeweed 珠蓍：复科中的一种产于欧亚大陆的草本植物（珠蓍 蓍属） ，其叶芳香，挺直且有整齐的锯齿，一束束的白色花头形成伞状花序 也作 sneezeweed |
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