New Words：

bottom [ˈbɒtəm] n. 底部；臀部；屁股
scruffy [ˈskrʌfi] adj. 不整洁的;邋遢的

Sample Sentences：

The bottom of the cup is broken.
He was always bottom of the class in maths.
You can't go to a job interview looking so scruffy!
Please pull down your pants and I will give you a shot in the bottom.

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