In the final stage of antibody development, antibody-producing B cells recognize specific parts of a pathogen and then mutate, or mature, so the antibody can bind to the pathogen more firmly.

在抗体发育的最后阶段，抗体生成B细胞识别病原体的特定部分，然后变异或者成熟，所以抗体可以结合病原体更加牢固。

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Those guardians of Sirius B, are even now preparing the stage, and await you to join them.

那些天狼星b守护者，现在甚至已经在准备舞台，并等着你加入他们。

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The diagensis sequence can be divided into 5 associations. The diagensis stage is during late diagenetic A and B period.

其成岩序列可划分为5个共生组合，成岩作用阶段处于晚咸岩A期和晚成岩B期。

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The break in hip-hop is that point in the song where the lyrics fade out, the instrumental and the percussion takes center stage, and the B-boys, the break-boys or the break- girls would come on to the dance floor and their thing.

NPR: Getting 'The Message' from Hip-Hop Lyrics

Last year's festival saw Tinie Tempah, Plan B and Iggy Pop take to the stage.

BBC: Evolution Festival 2012 line-up announced

Stage Four: A and B become so fed up that they decide to replace C with a new sidekick who will make them feel good about themselves.

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