If you improve on a previous achievement of your own or of someone else, you achieve a better standard or result. 提高
adjective [原级] 改良的；改进过的
They retrofitted the plane with improved seating. 他们在飞机上安装了经过改良的座椅。
verb [vt. 及物动词] 改进；增加（improve 的过去式和过去分词）；变得更好
Her service has improved. 她的发球有了提高。
- improved 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 7 Bats
- Lesson 20 Snake poison
- 网友用 “Improved” 造句精选
- The drug improved mental alertness. 这种药物提高了大脑的灵敏度。