used to connect words or ideas that are added together
I like apples and oranges, and I eat them every day.
我喜歡蘋果和橙子,而且我每天都吃它們。
used to show that one action follows another
She opened the door and walked in, and then she sat down.
她打開門走了進去,然後坐了下來。
used to show purpose or intention
Please go and buy some milk, and bring it back quickly.
請去買些牛奶,並且快點帶回來。
used to introduce a question or comment
He said he was tired, and I asked why, and he explained.
他說他累了,於是我問為什麼,然後他解釋了。
used to show a result or consequence
Study hard and you will pass, and that will make you happy.
努力學習你就會通過,而這會讓你開心。
used in addition or mathematics
Two and three make five, and five and five make ten.
二加三等於五,五加五等於十。
used between repeated words to show something continues or increases
The weather got hotter and hotter, and we needed more water and shade.
天氣變得越來越熱,我們需要更多的水和陰涼處。
used between repeated words to show there are differences
There are friends and friends, and some are better than others, and we should choose carefully.
朋友有好有壞,有些比其他的更好,我們應該仔細選擇。