水域: waters, body of water...
缓和: to ease (tension), to alleviate, to moderate, to allay, to make more mild...
药店: pharmacy...
堵车: traffic jam, (of traffic) to get congested...
原来: original, former, originally, formerly, at first, so, actually, as it turns out...
歌曲: song...
滑梯: (children's) sliding board, a slide...
人行道: sidewalk...
挺拔: tall and straight...
递交: to present, to give, to hand over, to hand in, to lay before...