Behind the stage was a wall covered in flowers twenty-five or thirty feet high.
台子后面是一面墙，上面满是鲜花，足足有25到30英尺高。
In a season when water levels should be rising behind the dam's 183-meter-high and 2.25-kilometer-long concrete retaining wall, they have held mostly steady around 170 meters since late last month.
这个季节的水位本应漫过大坝高183米、长2.25千米的蓄水坝，但自上月下旬以来，却一直稳定在170米上下的水平。
San Onofre is 50 feet above the sea, and behind a concrete tsunami wall 30 feet high, 50 percent higher than the largest tsunami thought possible there.
圣·奥诺弗雷（San Onofre）海拔50英尺，位于高达50英尺高的水泥墙后面，比预计要发生的最高级别的海啸高出50%。
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