善于

shàn yú

to be good at, to be adept at

于是站起来

yú shì zhàn qi lai

So stand up

于是我吻了她

yú shì wǒ wěn le tā

So i kissed her

于是我吻了他

yú shì wǒ wěn le tā

So i kissed him

于是我开始数

yú shì wǒ kāi shǐ shǔ

So I started to count

这本书是关于树

zhè běn shū shì guān yú shù

This book is about trees

政府要改善环境

zhèng fǔ yào gǎi shàn huán jìng

The government wants to improve the environment

她的行为很善良。

tā de xíng wéi hěn shàn liáng。

Her behavior is very kind.

她于晚上八点回家。

tā yú wǎn shang bā diǎn huí jiā。

She comes home at eight o'clock in the evening.

我终于通过了考试

wǒ zhōng yú tōng guò lè kǎo shì

finally I passed the exam

我想改善我的英语。

wǒ xiǎng gǎi shàn wǒ de Yīng yǔ。

I want to improve my English.