He buy a duty-free watch at the airport or he buy the watchduty-free.
他在机场买了一块免税手表或他买的手表是免税的。
2
He also entrusted me with the duty of winding his valuable gold watch for him. He overlooked the risk of damage in his desire to train me to a sense of responsibility.
他还让我负责每天给他那贵重金表上弦，想培养我的责任感，但他没有想到会有毁坏的危险。
3
Now this is what you are to do: A third of you priests and Levites who are going on duty on the Sabbath are to keep watch at the doors