a four-in-one body的用法和样例：
- He came running here with a knife held in one hand.
- The son of Hermes and Aphrodite, who became united in one body with the nymph Salmacis.
- Abe Mirza had to provide a lot of information.He says it was like learning everything for a four year college degree in one week.
- One who makes a career in one of the armed forces.
- A sleeping berth in one of these compartments.