例句2:This cell phone plan costs $0.5 per minute， whereas that one gives you up to 800 minutes per month for a fixed price. 这个手机套餐每分钟花费0.5美元，但是另一个套餐每月给你800分钟的固定价格。
Part I1 the [ðə, ði:] art.这，那 ad.[用于比较级；最高级前]2 be [bi:] aux. v.(am,is,are之原型) vi.是;在3 of [əv] prep.…的；由…制成的；关于；由于4 and [ ænd] conj.
不少于80个单词。Lily is a high school student. She wants to be a professional actress. As a volunteer ， she often volunteers her time。
Ladybugs love to snack on aphids and other pests. So people began importing an Asian species called the harlequin ladybird as natural pest control. But in their new environments， the harlequins wiped out native ladybugs. And they have their parasites to thank.但是在新环境中，小丑瓢虫却消灭了本地的瓢虫，这要归因于小丑瓢虫带来的寄生虫。
