Here are some useful expressions often used to make your language interesting.
Make sure you learn /memorise these expressions.
He was the apple of his eye (his darling)
As beautiful as a rainbow.
A drop in the ocean
A very small part of something. The statement is used to put things into a perspective,
generally as a proportionate statement.
Their revenue is a drop in the ocean, compared to the debts.
A rolling stone gathers no moss (a person who often changes his job or who never settles in one place will not succeed in life)