The process took three days, after which he photographed the embryo through a stereo microscope.

整个过程持续了3天，之后他通过立体显微镜拍摄照片。

youdao

The process took three days, after which he photographed the embryo through a stereo microscope.

整个过程持续了3天，之后他通过立体显微镜拍摄照片。

youdao