鱼类

China has the world's richest freshwater fish resources, totalling over 700 species, including 40 to 50 species of major cash fish.

中国淡水鱼资源居世界之首, 淡水鱼类有七百多种, 主要经济鱼类有四五十种.

Only sketchy information exists on the stock of natural resources such as fish.

人们对鱼类等自然资源的总储备量所知甚少。

Water is the natural medium in which most fish live.

水是鱼类生活的自然环境.

Curing is used mainly to preserve fish and certain meats.

腌制法主要用来存贮鱼类和一些肉食品.

The rivers afford an inexhaustible supply of fish.

这几条河有取之不尽的鱼类资源.

Whale is not a fish; it is a mammal.

鲸不是鱼类, 它是一种哺乳动物.

Even small fish can swallow seeds of moderate size.

既使小型的鱼类也可以吞食中型的种子.

The gills of fishes are analogous to the lungs in terrestrial animals.

鱼类的鳃与陆上动物的肺类似.

These crustaceans provide a valuable food source for some fish.

这些甲壳纲动物是某些鱼类重要的食物来源.

Peter Forey is curator of fossil fishes at the Natural History Museum.

彼得·福雷是自然历史博物馆鱼类化石展厅的负责人。

30 percent of reptiles, birds, and fish are currently threatened with extinction.

目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。

The aquarium has many tanks of fish.

那家水族馆有许多装在水箱中的鱼类.

Milk, oily fish and egg all contain vitamin D.

牛奶、油性鱼类和鸡蛋都含有维生素D.

The pond is quite small but can support many aquatic plants and fish.

池塘虽小，但能为许多水生植物和鱼类提供足够的养分。

Toxic waste could endanger lives and poison fish.

有毒废物可能危及生命，毒死鱼类。