https://online2.tingclass.net/lesson/shi0529/0001/1240/21-04.mp3
https://image.tingclass.net/statics/js/2012
20. Writing is a slow process, requiring ______ thought, time and effort.
A. significant B. considerable C. enormous D. numerous
<considerable>
considerable 相当多的，值得考虑的
</considerable>
<significant>
significant 重要的，有意义的
</significant>
<enormous>
enormous= tremendous 相当多的，大量的
</enormous>
<numerous>
numerous 许多的，大量的
</numerous>
<star>
star 星星
planet 行星
comet 彗星
constellation 星座
</star>
