看那“禁止游泳”的标志，它警告我们不要在湖里游泳。
Look at the sign "No swimming", it warns us not to swim in the lake.
不要喂鸟、不要爬树、不要摘花，不要在此湖里游泳。
Don't feed birds, climb trees, pick flowers or swim in the lake.
游客们被告知不要在迷宫似的隧道中闲逛或在冰冷的地下湖里游泳。
Visitors are advised not to wander down the labyrinthine tunnels or swim in the frigid underground lakes.
游客们被告知不要在迷宫似的隧道中闲逛或在冰冷的地下湖里游泳。
Visitors are advised not to wander down the labyrinthine tunnels or swim in the frigid underground lakes.
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