Here is the introduction to preposition.
Hope it will be useful.
I post this thread to make me and others to learn about the english vocabularies,words with meanings are here:
1.anodyne - capable of relieving pain
2.reprise - repeat an earlier theme of composition
3.dulcet - pleasing to the ear
4.parsimonious - excessively unwilling to spend
5.atavism - a reappearence of an earlier characteristic
if you had anything new,then you are invited too