mycid

例句：

1. 1. She often whispers to herself in her room.
   她经常在自己的房间里低声自语。
2. 2. He told me a secret that only he and I know.
   他告诉我一个只有他和我知道的秘密。
3. 3.They had a private talk about their future plans.
   他们私下讨论了他们的未来计划。