... manhole ring人孔加强环板;人孔加强圈;人孔环 cable manhole电缆人孔 collecting manhole集水井 ...
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Show him a grand piano, and he'd have to dive into it. Suggest a manhole, and he'd plummet straight down it. Run a cable across the road and he'd go flying into next week（？）
见到大钢琴，他一定会朝里钻，说有一个坑，他一定会径直往下跳，见到横穿道路的电缆，他一定会在下星期表演绊倒。
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