This is an island inhabited only by birds and scientists.

这个岛只住小鸟和科学家。

This is an island and this is an island.

这是一个岛， 这是一个岛。

This is an island surrounded by water.

这是一座四面环水的岛屿。

Among the vines they discovered many other melons, and Trot said gratefully: " Well, there's no danger of our starving, even if this is an island" .

在葡萄藤中，他们发现了许多其他瓜类，特洛特感激地说：“好吧，即使这是一个岛屿，我们也不会有饿死的危险。”