(鱼的)产卵回游

spawning migration的用法和样例:

例句

  1. The Chinese sturgeon is a typical migration fish between the river and the sea with a special behavior.中华鲟是典型的海河洄游性鱼类,其生活习性独特。

The waterfall at the Venta River in Latvia. It is here, near the town of Kuldiga, once a year fish can be seen jumping into the air trying to climb over a waterfall in an attempt to reach the upper course of the river, their favorite place for spawni

发表于:2018-12-02 / 阅读(59) / 评论(0) 分类 万花筒2010年

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发表于:2018-12-07 / 阅读(53) / 评论(0) 分类 2017年VOA慢速英语(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If youve ever popped open a jar of the pickled fish, you know that herring like to stick together. Actually, its something they do naturally, even before

发表于:2018-12-24 / 阅读(61) / 评论(0) 分类 Scientific American(三)月

(man) Today's lecture will center on prehistoric people of the Nevada desert. Now, most of these prehistoric desert people moved across the countryside throughout the year. You might think that they were wandering aimlessly --- far from it! They act

发表于:2018-12-30 / 阅读(77) / 评论(0) 分类 托福听力短文

Northeast Arctic cod, usually found in the Barents Seas, have been traveling up to the archipelago of Svalbard for the past three years. Off the coast of Longyearbyen, a Norwegian city located just 1,300 kilometers from the North Pole, scientists are

发表于:2019-02-05 / 阅读(50) / 评论(0) 分类 英语新闻

A staff member of the Kenting National Park Administration Office reminded parents that August at Kenting National Park in the southernmost county of Pingtung is a good time to see barn swallows and land crabs. The sight of hundreds of swallows perch

发表于:2019-03-06 / 阅读(107) / 评论(0) 分类 英语时差8,16
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