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- After eleven to twelve months, the caterpillars form pupae and become butterflies. 11-12个月后，毛毛虫出蛹并蜕变成蝴蝶。
- A caterpillar is the larva of a butterfly. 毛虫是蝴蝶的幼体。
- A caterpillar must pass through the cocoon stage to become a butterfly. 毛毛虫必须经过茧的阶段才能变成蝴蝶。
- The paint is sold in powdered form. 该油漆以粉制品形式出售。
- Most synthetic detergents are in the form of powder or liquid. 大多数合成洗涤剂呈粉状或液态。
- The ginpole is the simplest form of derrick. 起重吊杆是一种最简单的起重机。
- The script is massaged into final form. 这篇稿子经过修改已定稿。
- The ugly caterpillar will change into a beautiful butterfly. 丑陋的毛虫会变成美丽的蝴蝶。
- Selfishness in any form is my pet aversion. 我最讨厌自私自利，不管它以什么形式出现。
- Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
- It is possible to transmute one form of energy into another. 把某种形态的能量改变成另一形态的能量是可能的。
- Could this verb be used in progressive form? 这个动词可以用进行式吗？
- The two parties have united to form a coalition. 这两个党已结成联盟。
- There is a standard form of oath used in lawcourts. 法庭中使用的誓词有固定的格式。
- It will send you standard form for you to fill out. 它(商标局)会寄给你标准表格要你填写。
- The elephant's trunk is a unique form of appendage. 象的鼻子是一种独特的附肢。
- The French paper was set by our form teacher. 法语试卷是我们的班主任出的。
- The two parties have combined to form a government. 两党已经联合起来组成政府。
- A caterpillar transforms into a butterfly. 毛虫变成了蝴蝶。
- He neglected to return his income tax form. 他忽略了所得税表格的申报。
