河口一个自然形成的开口，作为溪流或河水的一部分，可通过此口流入更大的水域或港湾、峪或洞的入口 A natural opening, as the part of a stream or river that empties into a larger body of water or the entrance to a harbor, canyon, valley, or cave.
船驶入了港湾。 The ship steamed into the harbor.
港湾里有许多渔船。 There are some fishing vessels in the harbor.
