Dr. T won the Nobel Prize for discovering how the body can change…to fashion a seemingly unlimited number of antibodies, each specifically targeted at an invading microbe.
我的问题是:为什么后半句不用 targeting at...? 一般来说这种伴随状语应该用逻辑主语+分词结构, 不是吗?若理解成是一从句,为什么和主句之间没有连词呢? | 
