“a tour of duty”可以造什么句，a tour of duty造句

Biden will soon have a personal connection to the war in Iraq. His eldest son, Beau, a captain in the Delaware National Guard, is scheduled to leave for a tour of duty in Iraq in October.

Relatives and friends of Telford said the 37-year-old, a long-serving guardsman in the Grenadiers, had flown out to Afghanistan last month for a tour of duty with the Royal Military police.

IDA assigns sailors in the US navy to new jobs when they finish a tour of duty and has to juggle naval policies, job requirements, changing costs and sailors' needs.