释义
n. 胡桃
例句
1. This box is made of walnut. 这个箱子是胡桃木做的。 2. A seed borne within a fruit having a hard shell, as in the peanut, almond, or walnut. 坚果种子生长在有硬壳的果实之内的种子，如花生、杏或核桃
