镇上最畅销的营养品是“脑清新”和“六个核桃”（核桃之所以被认为可以增进脑力，很大程度上是因为形状像大脑）。
The town 's best-selling nutritional supplements are called Clear Mind and Six Walnuts ( the nuts are considered mind-boosters in large part because they resemble brains ) .
六个核桃