And they could quickly cut off Poland's tiny access to the sea from the two flanks.

他们可以迅速切断波兰从两翼出海的微小通道。

In 1919, German territory was cut in two in order to give Poland access to the sea.

1919年，德国领土被一分为二，以让波兰拥有出海口。

King penguins are the second-largest type of penguin and only breed on specific isolated islands in the Southern Ocean where there is no ice cover and easy access to the sea.

帝企鹅是第二大企鹅种群，并且只在南大洋特定的孤岛上进行繁殖，那里没有冰层覆盖，它们可以无障碍的进入海里。

Its only access to the sea is in the Baltic which means that in order to break out into the global ocean you have to pass through these narrow straits which presents two additional problems.

它唯一的出海口是波罗的海，这就意味着为了进入全球海洋，你必须通过这些狭窄的海峡，这就带来了两个额外的问题。