[N-COUNT 可数名词]外甥;侄子 Someone's nephew is the son of their sister or brother.
[oft poss N]
I am planning a 25th birthday party for my nephew.
我在为侄子筹划他25岁的生日聚会。
Oxford
nephew★/ˈnefjuː; NAmEˈnefjuː//ˈnevjuː; NAmEˈnevjuː/nounthe son of your brother or sister; the son of your husband's or wife's brother or sister 侄子;外甥☞compare