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出典:Wikipedia
出典:『Wikipedia』 (2011/08/03 10:02 UTC 版)
The Samseonghyeol (Korean for “three clans' holes”) are three large holes in the ground in Jeju on Jejudo, an island in the northern East China Sea. The holes are located in the city's urban area on the island's central north coast.
samseonghyeol