a breeches buoy的用法和样例：
- V1-8 The Pharisees are refuted for charging the disciples with a breech of the Sabbath law when they plucked ears of corn.
- The distribution of stress in the fillet of a breech ring is studied in detail, making use of methods of finite element, boundary element and photoelasticity.
- I threw a life buoy to him when I saw his struggling.
- The boy put on his breeches and went out for a ride.
- There is a vein of melancholy in his character.