Parasites are usually smaller than their hosts.
寄生虫通常比它们的宿主小。
For hosts and guests, the change means greater simplicity and comfort.
对于主人和客人来说，这种变化意味着更加简单和舒适。
Natural selection favors the parasites that are best able to find and feed on hosts.
自然选择偏爱那些最容易找到寄主并以之为食的寄生虫。
In most North American homes, if you are a guest, and the hosts are not smokers, you should not smoke in their house.
在大多数北美人的家里，如果你是客人，而主人又不吸烟，你就不应该在他们家里吸烟。
Hosts are eager to help me answer that question in the negative by pointing out how pleasant life in the factory can be.
东道主们通过证明这里的工厂生活如何舒适，热切地帮助我对自己的上述问题予以了否定的回答。
Dinner party hosts are told to place quiet people at the head of the table and facing the door so that they will feel more garrulous.
宴会主人被告知让安静的人面对门坐在桌子的上首，这样他们会觉得更唠叨。
In my culture, if you smoke in their house, you are a bad guest, but if they don't allow you to smoke in their house, they are not rude hosts.
在我的文化中，如果你在他们家里吸烟，你是一个不好的客人，但如果他们不允许你在他们家里吸烟，他们也不是粗鲁的主人。
Usually, it is possible to conclude that the inclusions are older than their diamond hosts, but with little indication of the time interval involved.
通常情况下，有可能得出包裹体比其金刚石寄主更古老的结论，但几乎没有说明所涉及的时间间隔。
Meanwhile, the deadliest strains of the virus perished with their hosts as natural selection favored strains that could infect hosts but not kill them.
同时，由于自然选择更倾向于选择那些能够感染宿主但不致其死亡的病毒，这种致命病毒便随着宿主的死亡而消失。
In Thailand, clicking the fingers, clapping your hands, or just shouting "Waiter!" will embarrass your hosts, fellow diners, the waiter himself and, most of all, you!
在泰国，敲手指、拍手，或者大喊“服务员！”会让东道主、同餐者、服务员，最主要的是你自己感到尴尬！
Exchange students from Spain and France are looking for welcoming warm, fun and loving hosts who will share life and culture with them for a few weeks in June, July and August.
来自西班牙和法国的交换生正在寻找热情、有趣和有爱心的东道主，他们将在6、7、8月的几周中与他们分享其生活和文化。
Tonight she hosts a ball for 300 guests.
今晚她做东办一场有300名来宾参加的舞会。
New Bedford hosts a number of lively festivals throughout the summer months.
新贝德福德整个夏天举办了许多个欢快有趣的艺术节。
Other wild animals like snakes and hedgehogs are also hosts of many viruses.
其他野生动物如蛇和刺猬也是许多病毒的宿主。
Now she hosts a popular program and she loves radio more than ever.
现在她主持一个受欢迎的节目，她比以往任何时候都更喜欢广播。
Make sure that the tourism provides experiences for both the visitors and the hosts.
确保旅游为游客和主人都提供体验感。
Some hosts threw away a great deal of food instead of eating it up.
有些主持人扔掉了大量食物，而不是把它们吃光。
Our hosts shared many of their experiences and recommended wonderful places to eat, shop, and visit.
我们的主人分享了许多他们的经历，并推荐了一些吃饭、购物和参观的好地方。
In the colder north-eastern provinces, the hosts would provide warm black tea with sugar for their guests.
在比较寒冷的东北省份，主人会给客人准备加糖的热红茶。
It is the story of an American travelling to a strange land, and of the people he meets on his way: Rustam, his translator, a lovely 24-year-old who picked up his colorful English in California, Oleg and Natasha, his hosts in Tashkent, and a string of foreign aid workers.
这是一个美国人只身前往陌生土地的故事，这也是他途中遇到的人的故事：他的翻译鲁斯塔姆，一个可爱的24岁年轻人，在加利福尼亚学会了有趣的英语；奥列格和娜塔莎，他在塔什干的借宿人家；以及许多外国救援人员。
The hosts know someone who is a comedian who will be replacing the band.
会有主办方认识的某位喜剧演员来取代乐队。
Goals by Xavi and Pedro gave the hosts a 2-0 lead in the first 18 minutes.
哈维和佩德罗的进球让主队在前18分钟以2比0领先。
Hosts and guests were matched up by Airbnb, a firm based in San Francisco.
总部位于旧金山的爱彼迎公司为房东和房客牵线搭桥。
Local government usually hosts all kinds of activities for the festival, such as folk culture performances, food tasting and so on.
当地政府通常会为节日举办各种活动，如民俗文化表演、食物品尝等。
In Thailand, clicking the fingers, clapping your hands or just shouting "Waiter!" will embarrass your hosts, fellow diners, the waiter himself, and most of all, you!
在泰国，敲手指、拍手，或者大喊“服务员！”会让招待你的人、同餐者、服务员，特别是你自己感到尴尬！
Furthermore, in the effort to feed the hosts of people on this planet, the focus on factory and intensive farming methods is being cited as a key factor in climate change.
此外，为了养活地球上的大量人口，人们对工厂化和集约化的耕作方法的集中被认为是气候变化的关键因素。
Most MILNET hosts will change to the DDN domain.
大多数美国军用网络主机将更改为数字数据服务域。
Helminthology is the study of parasitic worms and their effects on their hosts.
寄生虫学是研究寄生虫及其对宿主的影响。
We are as hosts at home awaiting the arrival of our weary visitors. This will give us victory in every battle.
以逸待劳，以主制客，此乃百战百胜之势。
Our first hosts were in Sault Sainte Marie.
第一位招待我们的主人住在苏圣玛丽。
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