The comma is the punctuation mark.
逗号是一个标点符号。
These two clauses are separated by a comma.
这两个分句由一个逗号分开。
I need bread, milk, and eggs from the grocery store.
我需要从杂货店买面包、牛奶和鸡蛋。
Sarah, can you please pass me the salt? (莎拉，你能把盐递给我吗？
The flag of the United States is red, white, and blue.
美国国旗是红色、白色和蓝色的。
My favorite seasons are spring, when everything comes to life, and autumn, with its colorful leaves.
我最喜欢的季节是春天，万物复苏，以及秋天，那时叶子五彩缤纷。
He likes to read books, write short stories, and paint in his free time.
他喜欢在空闲时间阅读书籍、写短篇小说和画画。
The company, founded in 1990, has grown significantly over the years.
这家成立于1990年的公司多年来发展显著。
After finishing my homework, I plan to watch a movie, cook dinner, and call it a night.
完成作业后，我打算看部电影、做晚餐，然后结束这一天。
The teacher asked us to bring pencils, erasers, and a ruler for the exam.
老师让我们为考试带上铅笔、橡皮和尺子。
New York, Los Angeles, and Chicago are among the largest cities in the U.S.
纽约、洛杉矶和芝加哥是美国最大的城市之一。
She loves hiking in the mountains, swimming in the sea, and simply enjoying nature.
她喜欢在山中徒步、在海里游泳，简单地享受大自然。
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