1.a lot of (很多,很普通)
a multitude of / an abundance of /many (大量,丰富)
A lot of people believe this is true.
A multitude of individuals contend that this is the case.
2.
pretty important (很重要)
of paramount importance / of critical significance / indispensable (至关重要)
Education is very important for society.
Education is of paramount importance to societal development.
3.
bad for… (对……不好)
detrimental to / deleterious to / adverse to (有害于)
This is bad for health.
This is detrimental to human health.
4.
good for… (对……有好处)
beneficial to / conducive to / instrumental in (有益于)
Exercise is good for health.
Regular exercise is conducive to maintaining good health.
5.
a big problem (一个很大的问题)
a pressing issue / an acute problem / a profound challenge (紧迫、严重问题)
This is a big problem in many cities.
This constitutes a pressing issue in many urban areas.
6.
hard to do / difficult (难)
arduous / formidable / taxing (艰难、严峻)
It’s hard to control pollution.
Curbing pollution remains a formidable challenge.
7.
easy to do (容易)
feasible / viable / attainable (可行)
It is easy to implement this policy.
This policy is both feasible and attainable.
8.
many different kinds of… (很多不同种类的)
a diverse array of / a wide spectrum of / a broad range of (种类繁多)
People have many kinds of choices.
Individuals have access to a diverse array of choices.
9.
make something better / improve (改善)
enhance / ameliorate / foster (提高、改善、促进)
We need to improve education.
We need to enhance the quality of education.
10.
a lot of money is spent on…
substantial resources are allocated to… / considerable funds are devoted to…
A lot of money is spent on healthcare.
Substantial resources are allocated to healthcare provision.