Cách sử dụng
Astern is a nautical term that means behind or at the back of a boat or ship. It is used when giving instructions or describing the position of something in relation to the back of the boat. For example, a captain might say "back the boat astern" to tell the crew to move the boat backwards. Or, someone might say "there is a buoy astern of us" to indicate that the buoy is behind the boat.