We have classes that discuss artificial intelligence within the computer science department.(我們計算機科學系有討論人工智能的課程。)

Good idea! We don't have classes on Saturday.(好主意！我們星期六不上課。)

Do you have the computer science classes?(你有計算機科學課程嗎？)

We have fourteen classes.(我們有十四節課。)

Like all objects, they have classes.(與所有對象一樣，它們都有類。)

If we don't have classes tomorrow, we will go to watch a film.(如果明天沒有課，我們就去看電影。)

There are at least two classes of these receptors, which have been designated A1 and A2.(這些受體至少有兩類，分別被命名為A1和A2。)

Then we would have classes or go on a sight seeing trip to different places of interest like Big Ben.(然后我們會上課或去不同的名勝古跡，像大本鐘。)

We have classes this afternoon.(我們下午有課。)

We'll have computer classes.(我們將開設電腦課程。)