They are just pretty patterns.
它们就是些好看的图案，
新概念英语第二册 Lesson 26 The best art critics

📚 句中词汇解析

从本句中提取的重要词汇

pretty ['prɪti] 词频1
adj. 漂亮的;机灵的，聪明的; adv. 相当，颇; n. 漂亮的人（或东西）;
"Two days after the accident she still looked pretty banged up."
事故过去两天后她看上去伤势仍然很重。
近义：lovable, lovely, neat, nice, smart, super 反义：homely, inartistic, unaesthetic, unattractive, unbeautiful, uncomely
patterns
n. 模式（pattern的复数形式）

📚 更多「新概念英语第二册」例句

On the last day I made a big decision.
到了最后一天，我作出了一项重大决定。
She looked at it critically for a moment.
她认真的看了好一会儿。
It was raining heavily and they found that a stream had formed in the field.
雨下得很大，他们发现地上已经形成了一条小溪。
'Do you call that a hat?' I said to my wife.
“你把那个叫帽子吗？”我对妻子说。
'This is the prettiest carpet I have ever seen,' she said.
“这是我见过的最漂亮的地毯，”她说。
He hitchhiked to Dover and, towards evening, went into a boat to find somewhere to sleep.
他搭便车到了多佛，天快黑时钻进了一条船，想找个地方睡觉。