词路径
- entity
- physical entity
- object
- physical object
- whole
- unit
- artifact
- artefact
- instrumentality
- instrumentation
- device
- contraceptive
- preventive
- preventative
- contraceptive device
- prophylactic device
- birth control device
- intrauterine device
- IUD
上位词
- birth control device
- contraceptive
- contraceptive device
- preventative
- preventive
- prophylactic device