contraceptive ring applicator

例句：

1. 1. The contraceptive ring applicator is a useful tool for preventing pregnancy.
   避孕环应用器是一种有用的工具，用于预防怀孕。
2. 2.The doctor prescribed the contraceptive ring applicator to her patient.
   医生为她的病患开了避孕环应用器。
3. 3. The contraceptive ring applicator is easy to use and effective in preventing pregnancy.
   避孕环应用器易于使用且有效防止怀孕。