a reddish cast的用法和样例：
- Ralph, Jr. is now a reddish, hairless dog.
- A reddish North American grape developed from the fox grape.
- The reddish cast you are seeing is probably the color balance of the ambient light in the room caused by incandescent lights.
- During the shedding period, the coat might take on a transitory reddish cast, which is to be penalized to the degree that it detracts from the overall black appearance of the dog.