adj.可航行的；適于航行的；可操縱的；可駕駛的
The river is navigable during the rainy season. 該河在雨季可以通行。
The Rhine is navigable from Strasbourg to the sea. 萊茵河從斯特拉斯堡入海這一段可以通航。
Without a rudder the ship was not navigable. 這船沒有舵無法駕駛。
