I am sure that…
I am not sure whether/if…
I would rather …. than …
It doesn't matter if…
too + adj./adv. to do
There are many differences between … and …
I have made up my mind to …
Thank you for v-ing.
If everyone can make a contribution to the earth/ nature/ society, our life will be better and better.
，我们将会及时处理。
