New Words：

daisy [ˈdeɪzi] n. 雏菊花
bug [bʌg] n. (机器，尤指计算机的）故障，程序错误，缺陷 ;虫子;小昆虫

Sample Sentences：

He pulled a bunch of daisies from behind his back.
Daisies are small white flowers which open during the day and close at night.

There is a bug in the system.
Most girls are really afraid of bugs.
That's why we test software: to find bugs.
We noticed tiny bugs that were all over the walls.

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