VOA慢速英语:Re-Growing Human Body Parts(翻译)

短语讲解：

1.They imagine using 3D-printing to make a kidney for someone in need of a replacement.

in need of 需要
例句：There was damp everywhere and the entire building was in need of rewiring.
到处都受了潮，整栋楼需要重新布线。

2.The hope is that we’ll be able to help the body create a better replacement -- really, a perfect replacement, for the person of exactly what they’ve lost.

be able to 能够; 能，会
例句：They may be able to help with childcare so that you can have a break
他们可以帮忙照料孩子，这样你就可以歇一歇了。