21.   Officials at the freshwater lake believe local fishermen poisoned the fish intentionally in order to increase their catch, which would then be sold to unknowing consumers.

22.   Officials at the freshwater lake believe local fishermen poisoned the fish intentionally in order to increase their catch.

23.   The joint project, called the Geo-Information System, uses digital cartography and satellite photographs to help protect the environment of the unique freshwater lake.

a. + lake >>共 363
small 5.17%
artificial 4.69%
nearby 4.20%
frozen 4.04%
man-made 3.31%
huge 2.26%
dry 1.86%
freshwater 1.86%
shallow 1.78%
vast 1.54%
freshwater + n. >>共 96
fish 19.92%
lake 8.98%
mussel 5.08%
fishing 3.13%
shrimp 2.34%
river 2.34%
supply 1.95%
turtle 1.95%
marsh 1.95%
mollusk 1.95%
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