a silicone breast implant的用法和样例：
- Microscopic examination of the fibrous capsule from a silicone breast implant will often reveal the refractile silicone material as shown here, because this material gradually leaks out.
- Joy Langan lost a breast to cancer and had had a silicone breast implant.She has since had the deice remoed.
- NIH scientists were asked by Congress to study the safety of silicone breast implants.
- Officials of the Food and Drug Administration are considering banning most or all use of silicone breast implants,on the ground that their makers have not submitted adequate safety data.