Gb	Eng
航道有浮标标明.	The channel is marked by buoys.
危险的礁石堵住了航道。	Dangerous rocks shut up the passage.
横越…的航道穿过（船）的航向，航线或路线	Across the course, line, or length of.
狭航道一个狭窄的，从海岸通往内地的航道；海峡	A narrow passage extending inland from a shore; a channel.