be on a diet
表示为了减肥而控制饮食，强调持续的状态。
She is on a diet to lose weight.
她正在节食减肥。
特别饮食；节食；惯常摄入；习惯性消费；议会；国会；法庭审理；庭审；人或动物摄入的食物和饮料。
The food and drink that a person or animal normally eats.
指通常吃的食物和饮料，不一定是为减肥。
人或动物摄入的食物和饮料。
The food and beverage a person or animal consumes.
法庭上的刑事诉讼。
A criminal proceeding in court.
规定的饮食
a prescribed selection of foods
控制的饮食和饮料选择,以增减体重或影响健康。
A controlled regimen of food and drink choices, as to gain or lose weight or otherwise influence health.
某些国家的立法议会(如日本)
a legislative assembly in certain countries (e.g., Japan)
任何习惯性的摄入或消费。
Any habitual intake or consumption.
生物(人或动物)的日常饮食
the usual food and drink consumed by an organism (person or animal)
A balanced diet includes vegetables, fruit, and whole grains.
均衡的饮食包括蔬菜、水果和全谷物。
用法提示：此处 diet 指日常饮食，作名词。
The doctor recommended a low-salt diet for her heart condition.
医生建议她为了心脏健康采用低盐饮食。
用法提示：diet 在此指规定的饮食方案，作名词。
Pandas' diet consists mainly of bamboo.
熊猫的饮食主要以竹子为主。
用法提示：diet 表示动物惯常吃的食物，作名词。
表示为了减肥而控制饮食，强调持续的状态。
She is on a diet to lose weight.
她正在节食减肥。
强调开始节食这个动作。
He went on a diet last month.
他上个月开始节食了。
表示长期只吃某类食物。
A diet of fast food is bad for you.
总吃快餐的饮食习惯对你有害。
表示让某人开始控制饮食。
The doctor put her on a diet.
医生让她开始节食。
grammar · medium
易错句子I'm on diet to lose weight.
正确表达I'm on a diet to lose weight.
表示“节食”时，diet 是可数名词单数，前面必须加不定冠词 a，固定短语是 on a diet。汉语说“在节食”没有冠词，所以容易漏掉 a。
grammar · medium
易错句子She has been in a diet for a month.
正确表达She has been on a diet for a month.
表示“在节食、在控制饮食”时，英语固定用介词 on，即 on a diet，不能用 in。不要按汉语“在……”直译成 in a diet。
grammar · medium
易错句子I am diet to lose weight.
正确表达I am dieting to lose weight.
diet 作动词时，be 动词后要用 -ing 形式 dieting，不能用原形；也可以说 I'm on a diet。把汉语“我在节食”直译成 I am diet 是错误的。
均衡饮食
Doctors recommend a balanced diet rich in fruits and vegetables.
医生建议多吃水果和蔬菜的均衡饮食。
节食；开始控制饮食
She decided to go on a diet before her wedding.
她决定在婚礼前节食。
速成节食；极端节食
Crash diets rarely lead to lasting weight loss.
速成节食很少能带来持久的减肥效果。
主食；主要食物
Rice is the staple diet in many Asian countries.
米饭是许多亚洲国家的主食。
严格的饮食控制
He follows a strict diet to control his blood sugar.
他遵循严格的饮食控制来管理血糖。
饮食和运动
The program combines diet and exercise to improve overall health.
该项目将饮食和运动结合起来，以改善整体健康。
Choose the next layer that will help you use diet with more confidence.
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