How to say "I need to take medicine three times a day" in Chinese

 Here are a few ways to say "I need to take medicine three times a day" in Chinese:

• 我一天需要吃三次药。(Wǒ yī tiān xūyào chī sān cì yào.) - This is the most common and straightforward way. It literally translates to "I one day need eat three times medicine."

• 我需要一天吃三次药。(Wǒ xūyào yī tiān chī sān cì yào.) - This is very similar to the first one, just with a slightly different word order. Both are perfectly acceptable.

• 我一天要吃三次药。(Wǒ yī tiān yào chī sān cì yào.) - This is also a common and natural way to say it. The "要 (yào)" here implies "need to" or "have to."

• 我每天要吃三次药。(Wǒ měi tiān yào chī sān cì yào.) - This translates to "I every day have to eat three times medicine." It's very similar to the previous one and also perfectly fine.

All of these options are correct and understandable. The first three are probably the most frequently used. The difference between them is very subtle.