Avian leukosis virus subgroup J (ALV-J) is a retrovirus which infects meat-type chickens.
亚群

病病毒(ALV-J)是一种主要感染肉用型鸡的反转录病毒。
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I mean, I was struck by reading a story, I believe it was in the New York Times, about how the domestic intelligence apparatus in the United States is very concerned about a particular subgroup of fringe folk referred to as accelerationists.
我的意思是, 我读
一篇故事,我相信是在《纽约时报》上,讲述了美国国内情报机构非常关注一个特定的边缘群体, 他们被称为加速主义者。
We know that most people who have COVID-19 do develop an immune response, but there is a subgroup of people, particularly those who have had very mild infection and sometimes they don't even know it, you know, it's asymptomatic.
我们知道, 大多数感染过COVID-19的人确实会产生免疫反应,但有一部分人,特别是那些感染非常轻微的人, 有时他们甚至不知道自己感染了,也就是说是无症状的。
Within the Protestant faith, there are a large number of denominations, or subgroups of religious practice, including both mainstream denominations, such as Presbyterians and Lutherans, and Evangelical churches, such as Methodists and Baptists.
在新教信仰中, 有大量的教派或宗教实践的子团体,包括主流教派, 如长老会和路德会, 以及福音派教会, 如卫理公会和浸信会。