1) I lost my umbrella somewhere.

我把雨伞丢了。
3) Use an umbrella to protect yourself from the rain.

带把伞遮雨。
4) I have lost my book.

我丢了书。
5) recover the lost umBrella

找回丢失的雨伞
6) I have a large umbrella.

我有把大伞,
参考词条