英文重组句子it condense/When water vapour/cool,/water droplets and clouds./and form

英文重组句子it condense/When water vapour/cool,/water droplets and clouds./and form
英文重组句子
it condense/When water vapour/cool,/water droplets and clouds./and form

英文重组句子it condense/When water vapour/cool,/water droplets and clouds./and form
1.it is expensive to buy plastic planes model,so i use hard paper.买塑料飞机模型太贵了,所以我就用硬纸（做模型）.
2.I borrowed some books about making model planes from libraray.(于是)我从图书馆借了一些关于制作飞机模型的书籍.
3.When I grow up,I will be an engineer.长大后我想当工程师.
4.An engineer needs to use his hands and brains.工程师需要兼具知识和动手能力.
5.From now on,I will read a lot about engineering and study hard.从现在开始,我要博览机械工程方面的书籍、认真学习.