a punctilious host的用法和样例：
- The host then passed around a box of cigars.
- A punctilious police official, feeling the presence of the body unseemly in the courtyard of his excellency, bade the dragoons drag the body away into the street.
- A host of friend meet him at the railroad station.
- The host team won the game by a nose.
- The host tell a joke to his guest to break the ice.