スラング

"Cool" "That's cool" "How cool"

= That is a great thing and I like it a lot.

"It's all good"

= Everything is okay

"Really" "Oh really"

= ほんとですか

"It's worth it"

= やりがいがあります

"Can you do me a favor?"

"Sure, what do you need?"

= あなたは親切なことが私にできますか?