It can save lots of your time, for it is much quicker to use this program rather than do the tracing by hand or using a digitizer.

它可以节省你很多时间，因为它是快得多使用该程序而不是手工做的追踪或使用数字化仪。

youdao

It can save lots of your time, for it is much quicker to use this program rather than do the tracing by hand or using a digitizer.

它可以节省你很多时间，因为它是快得多使用该程序而不是手工做的追踪或使用数字化仪。

youdao