多益高手拜託>_

W: In my previous job I was asked to lead training for a new product. I had only weeks to learn the product and figure out how to teach it. It involved an advanced technology our company had recently developed, so it was quite challenging. The first challenge really was learning to use it — I hit the user manuals and several online support sites, and worked with the software until I felt I understood it pretty well. Then I created the training materials. I was able to train our entire forty-person office in another two weeks, and as a result, we became the first office to handle a customer installation of the new product.

這句話:I hit the user manuals and several online support sites, and worked with the software until I felt I understood it pretty well.

請問一下hit要怎麼詮釋阿???好難喔@_@"