Speaking on behalf of the host country, Russian Foreign Minister Sergei Lavrov said an effective struggle against such problems requires significant improvement in the combat readiness and coordination of the Afghan military, police and other law enforcement agencies, which the U.S.also considers important.

VOA: standard.2009.03.27

Took it out of the virus completely, cloned it into a plasmid, that plasmid was expressed in a foreign host, in this case it was expressed in yeast cells.

将基因从病毒中完全提取出来,并克隆制成质粒,该质粒在外来宿主中表达,此例中质粒在酵母细胞中表达

耶鲁公开课 - 生物医学工程探索课程节选

It's foreign, it's not part of the host or not a normal part of the host.

所以它成了外源物,外源物不是宿主的一部分,至少不是正常的一部分

耶鲁公开课 - 生物医学工程探索课程节选

So, when the right signal is received, the right T-cell finds your host cell with a foreign virus in it, the first thing that happens is that this T-cell becomes activated and it starts reproducing, making more copies of itself.

所以 当接收到正确的信号,恰当的T细胞寻觅到,感染外源病毒的细胞时,首先发生的是,T细胞被激活并开始增殖,制造更多自身拷贝

耶鲁公开课 - 生物医学工程探索课程节选