Every Saturday I’ll give you a couple of idioms to learn. An idiom is a saying or phrase whose meaning cannot be taken from the literal meanings of the words.
keep track of: keep count, keep record, follow the progress of something.
Example:
If you want to measure the effectiveness of your marketing, you need to keep track of how your new customers are finding out about you.
throw cold water on: criticize; stop or prevent somebody from doing something, especially by criticizing them.
Example:
The team in the tech department threw cold water on sales’ plan to offer same-day shipment on special orders.