principally例句
The book is aimed
principally at beginners.
这本书主要是为初学者编写的。
The sell-off is aimed at repositioning the company as a publisher
principally of business information.
出售公司部分业务的目的是将公司重新定位为以商业信息类出版物为主的出版商。
Embryonic development seems to be controlled
principally by a very small number of master genes.
胚胎发育似乎主要受制于少数主导基因。