哎 (pinyin: āi, written "ai" or "ai") means interjection of surprise. Below: its meaning, pronunciation, stroke order, and example sentences, so you can learn how to read, say, and write 哎.
Meaning
interjection of surprise
Stroke order
哎
Examples
哎呀,真不能再低了。八块五,我送你两个小番茄。
āi ya, zhēn bù néng zài dī le. bā kuài wǔ, wǒ sòng nǐ liǎng ge xiǎo fān qié.
Oh come on, can't go any lower. Eight fifty, and I'll throw in two cherry tomatoes.