heron/ˈher.ən/名词鹭,苍鹭Last summer, I spotted a heron gracefully wading along the edge of the marsh, searching for fish to prey upon.去年夏天,我看到一只苍鹭优雅地在沼泽边缘徜徉,寻找鱼类作为猎物。想跟读,去练习