I lowered the tip of mine into the water, tentatively, pensively dislodging the fly, which darted two feet away, poised, darted two feet back, and came to rest again a little farther up the rod.

• 流入湖泊的上千条溪流，在冬季里仍然生机勃勃。只有少数的水流，由于太贴近地面，源头才会被冻住。