adj.可航行的；适于航行的；可操纵的；可驾驶的
The river is navigable during the rainy season. 该河在雨季可以通行。
The Rhine is navigable from Strasbourg to the sea. 莱茵河从斯特拉斯堡入海这一段可以通航。
Without a rudder the ship was not navigable. 这船没有舵无法驾驶。
