单词
isthmus
读音
ˈɪsməs
美式
英式
词根
无
释义
n. 地峡；管峡 [ 复数 isthmuses或isthmi ]
例句
The formation of the isthmus had important consequences for global patterns of ocean water flow.
地峡的形成对全球洋流格局产生了重要的影响。
North and South American species migrating across the Isthmus now came into competition with each other.
北美和南美的物种迁徙穿过地峡，现在开始互相竞争。
Second, it appears that closely related populations of fishes on both sides of the isthmus are starting to genetically diverge from each other.
其次，地峡两侧紧密相关的鱼类种群似乎开始在基因上彼此分化。
The formation of the isthmus had important consequences for global patterns of ocean water flow.
地峡的形成对全球洋流格局产生了重要的影响。
North and South American species migrating across the Isthmus now came into competition with each other.
北美和南美的物种迁徙穿过地峡，现在开始互相竞争。
Second, it appears that closely related populations of fishes on both sides of the isthmus are starting to genetically diverge from each other.
其次，地峡两侧紧密相关的鱼类种群似乎开始在基因上彼此分化。
强化记忆
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was to travel the narrowest portion of the continent—the 48-kilometer Isthmus of Panama.By 1855, a railroad spanning the region significantly shortened to the trip,
To truly connect these two bodies of water shipping interests needed a canal—a continuous maritime passage through the isthmus.The first attempt at this colossal construction project was taken up in 1881
flooding the Culebra Cut and joining the Atlantic and Pacific Oceans.Today, nearly 14,000 vessels travel through the isthmus annually—each in under 12 hours.
To move goods between Asia and the Mediterranean basin,traders had to traverse the narrow isthmus separating the Red Sea and the Nile,journeying in camel-bound caravans through the unforgiving desert.
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