Meaning of dù:
杜
surname Du; birchleaf pear (tree)
Lǎoshī jièshào wǒmen de xīn tóngxué, tā xìng Dù.
老师介绍我们的新同学,他姓杜。
The teacher introduced our new classmate, whose surname is Du.
Yuànzi lǐ zhòngle yī kē dù shù.
院子里种了一棵杜树。
A birchleaf pear tree was planted in the yard.
to stop; to prevent; to restrict
Wèi le bǎohù huánjìng, wǒmen yīnggāi dùjué làngfèi.
为了保护环境,我们应该杜绝浪费。
To protect the environment, we should stop wastage.
Wǒmen xūyào cǎiqǔ cuòshī lái dùjué zhège wèntí.
我们需要采取措施来杜绝这个问题。
We need to take measures to prevent this problem.
Zhèngfǔ cǎiqǔ cuòshī lái dùjué fǔbài.
政府采取措施来杜绝腐败。
The government implemented measures to eradicate corruption.