appreciably

例句：

1. 1. He has improved his English considerably since he started studying it.
   自从他开始学习英语以来，他的英语水平有了很大的提高。
2. 2. The new policy will have a considerable impact on the economy.
   这项新政策将对经济产生相当大的影响。
3. 3. She appreciably appreciated the kindness of her friend.
   她非常感激朋友的善意。