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

They will be arriving here tomorrow.
明天就要到达此地。
It contained $50.
它里面装着50英镑。
Dan wondered why he was wanted by the police, but he went to the station yesterday and now he is not worried anymore.
丹奇怪警察为什么找他，但昨天还是去了，结果他一再担心了。
'It doesn't matter,' I said.'I'll get off here.'
“没关系，”我说，“我就在这儿下吧。”
The snake then wound itself round the wires.
于是蛇就缠住了几根电线。
Then in 1989, twenty-six years after the crash, the plane was accidentally rediscovered in an aerial survey of the island.
于是，到了1989年，飞机失事26年后，在对小岛的一次航空勘查中那架飞机被意外地发现了。