Unimproved
a. 未经改善的, 没有改良的, 未耕过的, 未被利用的
🔴 反义词
🗣️ 情景例句
This is fun.
很有意思。
I'm afraid it was a bother for you to do this.
我害怕做这会给你带来麻烦。
And Chinese, Korean, Filipino and Indian engineers are graduating in droves from California's colleges.
中国、韩国、菲律宾和印度的工程师一批批地从加州的大学毕业。