'I have eaten' is the present perfect tense of the verb 'to eat', 'I had eaten' is the past perfect and 'I will have eaten' is the future perfect.
Ihave eaten是动词eat的现在完成时；Ihad eaten是过去完成时；Iwill have eaten是将来完成时。
She handed him also the whole slice of cheese, saying, "You can eat that, I have had enough!"
她又把整片奶酪递给他，说：“你可以吃那个，我已经吃饱了！”
Mules have strong muscles like horses but they eat less, can work longer, and are gentler like donkeys.
骡子和马一样有强壮的肌肉，但它们吃得更少，工作时间更长，而且像驴一样温和。
None of these concerns seem to have been appreciated by the EAT-Lancet Commission's representative, Brent Loken, who said "India has got such a great example" in sourcing protein from plants.
这些担忧似乎都没有得到EAT 柳叶刀委员会代表布伦特·洛肯的认可，他说，在从植物中获取蛋白质方面，“印度是一个很好的例子”。
People under stress may become anxious or depressed, and as a result may eat too much or too little, have sleep difficulties or fail to exercise.
压力下的人可能会变得焦虑或抑郁，结果可能会吃得太多或太少，有睡眠困难或不能锻炼。
These habits have helped companies earn billions of dollars when customers eat snacks or wipe counters almost without thinking, often in response to a carefully designed set of daily cues.
由于受到一系列精心设计的日常暗示的影响，消费者几乎不假思索地吃着零食，或者擦拭柜台，这些行为习惯已经帮助各公司赚取了数十亿美元的收益。
Kyoto people say that the women in their city have such beautiful skin because they eat plenty of eel.
京都人说他们城市里的女人有这么无暇的皮肤是因为她们吃了很多鳗鱼。
Numerous tribes have legends of massive, hairy creatures that would kidnap and eat humans, overpowering them with their ferocity and strength.
许多部落都有关于巨大的、多毛的生物绑架并吃掉人类的传说，它们的凶猛和力量压倒了人类。
Many of us rush through the day, with no time for anything, and when we have time to get a bite to eat, we gobble it down.
我们很多人匆匆忙忙地度过一天，没有时间做任何事情，当我们有时间吃点东西时，我们经常是狼吞虎咽。
When you sit down with your family to eat a meal, have you ever wondered when and where people used chopsticks for the first time?
当你和家人坐下来吃饭时，你有没有想过人们第一次使用筷子是在什么时候、什么地方？
I was hellbent on getting him to eat French fries, drink wine, have dessert and say bad words. These are things he never seemed to allow himself to do.
我尽我所能地让他吃炸薯条、喝红酒、吃甜点，并讲粗口。这些是他似乎从来不允许自己做的事。
Sit thee down, Jack, and quiet thyself; thou shalt have a morsel to eat, anon.
坐下吧，贾克，安静下来，你很快就会有东西吃的。
Type 2 Diabetes mainly happens to those who do not have enough physical exercise, eat too much unhealthy food and get too heavy.
2型糖尿病主要发生在那些没有足够的体育锻炼，吃太多不健康的食物和体重过重的人身上。
Mules have strong muscles like horses, but they eat less, can work longer, and are gentler, like donkeys.
骡子有着像马一样健壮的肌肉，但是吃的更少，工作时间更长，并且更温顺，像驴一样。
Why should we have strict places for different sexes to eat?
为什么我们要为不同性别的人设置严格的就餐场所呢？
Now you won't have to eat hard black bread any more for a little while.
现在你可以有一段时间不用再吃干硬的黑面包了。
At meal times, I have to eat whatever is on my plate regardless of the portion size or taste.
在吃饭的时候，我必须吃我盘子里的任何东西，不管分量大小或味道。
Even if you do not buy your food in the cafeteria, you can use the tables to eat your lunch, to have meetings and to study.
即使你不在自助餐厅买食物，你也可以用这些桌子吃午饭，开会和学习。
You make the best cake in the world, Betty, and I like to eat your cake better than have one from the bakery.
贝蒂，你做的蛋糕是世界上最好吃的，相比面包店的蛋糕，我更喜欢吃你做的蛋糕。
We should be looking for new ways to ensure what people eat wouldn't have much impact on their waistlines.
我们应该寻找新的方法来确保人们的饮食不会对他们的腰围产生太大的影响。
Everything always tasted to me like cod-liver oil, and I have often wished that I should never have to eat.
对我来说，每样东西都尝起来像鱼肝油，我常常希望自己永远不用吃东西该多好。
"I think we shall have to eat it all this morning, Mary," Colin always ended by saying.
“玛丽，我想今天早上我们得把它都吃了。”最后，科林总是这样说。
Some fish have started to eat the whale's tail.
一些鱼类已经开始吞食鲸的尾巴。
We only have these vegetables to eat for dinner.
我们晚餐只有这些蔬菜吃。
They didn't have enough food to eat, so they often went hungry for days.
他们没有足够的食物吃，所以经常一连几天挨饿。
We have a big dinner, eat dumplings and stay up late for good luck.
我们会吃一顿丰盛的晚餐，吃饺子，还会守夜以求好运。
In some other parts of the world, people even don't have enough food to eat.
在世界的其他一些地方，人们甚至没有足够的食物吃。
She also talked about the situation of children in many parts of the world, especially poor children who don't have enough to eat.
她还谈到了世界许多地方儿童的处境，特别是那些吃不饱饭的贫困儿童。
Many old people still remember clearly that they didn't have enough food to eat in the early 1960s.
许多老人仍然清晰地记得，他们在60年代初没有足够的粮食吃。
Trees and bamboos are disappearing, so golden monkeys have less and less to eat.
由于树木和竹子正在消失，所以金丝猴的食物越来越少。
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