Nà bù kěnéng shì mǎlì, tā xiànzài zài yīyuàn. That can't be Mary. She's in the hospital now.
Mǎlì bù qióng, xiāngfǎn, tā xiāngdāng fùyù. Mary is not poor. On the contrary, she is quite rich.
Wǒ duì mǎlì de bāngzhù biǎoshìle gǎnxiè. I thanked Mary for her help.