英语翻译众所周知,吸烟会导致肺癌,因此你最好戒烟（cause)要一位十岁的孩子解决这类问题太难了（too...to)今天

As we know , smoking causes lung cancer,so you‘d better stop smoking
To a child of ten to solve this problem is too difficult
Did you hear from your uncle this morning?
I really made a great progress in English with your help
You had better not shout in the reading room
How can we prevent people from disorderly spit?
On the whole, Martin is an excellent staff in our office
Travel can enable us to harvest knowledge, expand horizons
Can you be in charge of this work when I went on holidays?
The teacher said that there would be a discussion in our class
纯手工翻译,求采纳!