您要查找的是不是：
- 正在 in the process of (doing something or happening)
- 正 Chinese 1st month of year
- 衬 lining
- 正本 original
- 正如 be just like
- 内衬 inside lining
- 衬板 scaleboard
- 正交 orthogonality
- 衬底 underlay
- 正的 plus
- 不正 roguery
- 正大 honest; upright; aboveboard
- 袖衬 bushing
- 正中 midst
- 衬砌 liner
- 正装 formal dress
- 衬胶 line with rubber
- 正片 positive
- 里衬 back lining
- 正向 positive direction
