纽伯尔德教授和他的同事今年夏天的大部分时间都在做这项研究。

Prof Newbold and his colleagues spent most of the summer on their research.

youdao

纽伯尔德教授和他的同事今年夏天的大部分时间都在做这项研究。

Prof Newbold and his colleagues spent most of the summer on their research.

youdao