1. 癌症是一种致命的疾病。

[ ái zhèng shì yī zhǒng zhì mìng de jí bìng 。 ]

Cancer is a deadly disease.

2. 请代我向你们全家致以最诚挚的问候。

[ qǐng dài wǒ xiàng nǐ mén quán jiā zhì yǐ zuì chéng zhì de wèn hòu 。 ]

Please give my best regards to your family.

3. 让我向在座诸位致以最真挚的欢迎。

[ ràng wǒ xiàng zài zuò zhū wèi zhì yǐ zuì zhēn zhì de huān yíng 。 ]

I would like to express to all of you here our sincere welcome.