例句與造句

1. with the efforts of generations of developmental biologists, detailed cell migration pathways in different kind of vertebrate embryos have been clarified, but unfortunately, mechanism underlying has been poorly known by now partially because of the uncertainty of the cellular events happening
   由于組織不透明難以進(jìn)行活體觀察。細(xì)胞運(yùn)動(dòng)是所有后生動(dòng)物發(fā)育過程中都能觀察到的一種生命現(xiàn)象，闡明細(xì)胞運(yùn)動(dòng)機(jī)制對(duì)于形態(tài)發(fā)生機(jī)制的了解具有重要意義。
2. It's difficult to find developmental biologist in a sentence. 用developmental biologist造句挺難的