How often do you dive to 300 metres into the sea or need to find your direction in the area around the South Pole? 是这句话吧同学?
你多久会潜水到海下300米或需要在南极附近找到你的方向?
How often do you dive to 300 metres into the sea or need to find your direction in the area around the South Pole? 是这句话吧同学?
你多久会潜水到海下300米或需要在南极附近找到你的方向?