But this antigen presenting cell is more likely a professional antigen presenting cell, or a subset of cells of your immune system that are specialized in ingesting foreign particles and displaying their contents to the rest of the immune system.

但这种抗原呈递细胞更加类似于,专职抗原呈递细胞,或者是体内免疫细胞中的一个亚群,专门从事吞噬异己物质,并告知免疫系统的其他细胞的工作

耶鲁公开课 - 生物医学工程探索课程节选

or like, for, if I have like anything I want to learn in my professional life or whatever, it's really easily available.

或者，如果我在以后职业上有什么要学，也可以在这里很容易找到。

开放式的课程？ - SpeakingMax英语口语达人

But still is very professional and you can use it in any setting, business or casual.

但它也同样可以是很专业的表达，可以用在商务或是生活的各种语境。

Is it okay 课堂 - SpeakingMax英语口语达人

I don't really have like a professional opinion or a very well-informed opinion.

我的观点并不专业，也不是很成熟。

关于干细胞的研究 - SpeakingMax英语口语达人