名詞 dietary:

1. a regulated daily food allowance

形容詞 dietary:

1. of or relating to the diet
   同義詞：dietetic, dietetical

1. The seeds of this plant, widely used as a mild bulk laxative and sometimes added to foods as a dietary source of soluble fiber.
   亞麻籽車前的籽這種植物的種子，作為溫和的散裝緩瀉劑而被廣泛使用，有時(shí)加在食物中作為可溶纖維的飲食上的來源
2. Many doctors prefer a natural food, rich in dietary fibre, which will help you to avoid constipation, rather than having to resort to purgatives. The reason is obvious-prevention is always better than cure.
   許多醫(yī)生推薦含有豐富食物纖維的天然食物，因?yàn)樗兄诜乐贡忝兀匀〈f不得已而使用的瀉藥。原因顯而易見－治病總是不如防病。

di.e.tar.y

adj.（形容詞）
Of or relating to diet.
飲食的：飲食的與飲食有關(guān)的
n.（名詞）
【復(fù)數(shù)】 di.e.tar.ies
A system or regimen of dieting.
飲食：飲食的體系或生活方式
A regulated daily food allowance.
每日規(guī)定的食物量

【引伸】
di.etar.ily