Word: 改善

你的英语已有所改善。

Nǐ de Yīngyǔ yǐ yǒusuǒ gǎishàn.

You've improved your English.

你要改善一下你的英语。

Nǐ yào gǎishàn yíxià nǐ de Yīngyǔ.

You have to polish your English.

它有改善了。

Tā yǒu gǎishànle.

It's improved.

报告说明，天然资源管理需从根本加以改善。

Bàogào shuōmíng, tiānrán zīyuán guǎnlǐ xū cóng gēnběn jiāyǐ gǎishàn.

The report says that natural resource management needs to be improved from the root.

有很多的方法可以改善人的一生。

Yǒu hěn duō de fāngfǎ kěyǐ gǎishàn rén de yìshēng.

There are many ways to improve one's life.