周四

wǒ měi zhōu sì yào qù shàng yú jiā kè

我每周四要去上瑜伽课。

I go to a yoga session on Thursdays.

dǒng shì huì zhōu sì zhī qián xū yào zhè xiē cái liào

董事会周四之前需要这些材料。

He board needs these materials by Thursday.

wǒ dǎ suàn zhōu sì qù gōng yuán

我打算周四去公园。

I'll be at the park on Thursday.