1. As a name: 玛丽 (Mǎ Lì) - This is the most common way to spell "Mary" as a name in Chinese. It uses the pinyin romanization system.
2. As a general term: 玛利亚 (Mǎ Lì Yà) - This spelling is used when referring to Mary as a religious figure, such as the Virgin Mary. It's based on the Greek name "Maria".
Both spellings are pronounced similarly, with the emphasis on the first syllable: Mǎ.