When the clockhand reached and collects the magnets - the assignments are due.
当时钟指针到达并收集了这些磁铁,就该交作业了。
2
Small magnets represent different assignments. When the clockhand reached and collects the magnets - the assignments are due.
这些小磁铁代表了不同的作业。当时钟指针到达并收集了这些磁铁,就该交作业了。
3
The main parts of a sundial are an erect stylus and a calibrated disk. As the sun moves in the sky, the shadow of the stylus moves like a clockhand around the disk indicating the hours.