A chestnut or chestnut tree is a tall tree with broad leaves.
N-COUNT
栗子
Chestnuts are the reddish-brown nuts that grow on chestnut trees. You can eat chestnuts.
COLOUR
栗色;紅棕色
Something that is chestnut is dark reddish-brown in colour.
例句
...a woman with chestnut hair.栗色頭發的女子...a chestnut mare.棗紅色母馬
PHRASE
老掉牙的話(或故事、笑話);老一套
If you refer to a statement, a story, or a joke as an old chestnut or a hoary chestnut, you mean that it has been repeated so often that it is no longer interesting.
例句
...that old chestnut, the war between man and machines.又是老掉牙的故事：人機大戰