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1·We received a warm welcome from our hosts.

我们受到了主人的热情欢迎。《牛津词典》

2·Parasites are usually smaller than their hosts.

寄生虫通常比它们的宿主小。

3·At the same time, defensive abilities of hosts are also selected for.

同时，寄主的防御能力也被挑选。

4·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。

5·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。

6·In the eyes of many foreigners, Chinese are the best hosts and the worst guests in the world.

在许多外国人眼里，中国人是世界上最好的东道主，也是最糟糕的客人。

7·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。

8·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。

9·I am singing the starry sky and the hosts that sang high in air, and the gods that were suddenly destroyed in their own shrines.

我在歌唱星空，在空中高歌的主人，以及在自己的神殿中突然被摧毁的神灵。

10·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。

(1)a host of许多，一大群；众多，大量

(1)host country东道国；主办国；所在国

(1)host cityn. 主办城市；举办城市

(1)host computer[计]主机

(1)host family寄宿家庭；接待留学生的家庭

(1)host rock主岩；母岩；容矿岩