孩子们在码头上钓鱼,玩得很开心。
The kids were fishing and having fun on the ___pier.
这座建筑的门廊由六根大理石柱支撑。
The porch of this building is supported by six marble ___piers.
这座桥的混凝土桥墩经受住了洪水的考验。
The concrete ___piers of the bridge stood strong against the floodwaters.