extra charge

基本解释

In this way, you can pay for purchases a month later, without any extra charge.
这样，你可以在一个月以后再支付货款，不收任何额外的费用。
There is an extra charge of $150 if you want the weapons delivered in the south.
而且如果你需要运到南部还要付150美元的额外费用。
Why, for instance, do water users in a megacity like Lagos not pay an extra charge to get cesspits pumped out?
例如，为何不让像拉各斯这样大城市的用水者交纳些额外费用以资助抽粪出坑呢？

"There is no extra charge whether for regular checkups, for treatments or for prescription medicines."

The StorCenter px2-300d includes a subscription to McAfee VirusScan enterprise at no extra charge.
ENGADGET: Iomega releases two new StorCenter NAS drives to contain that ever-expanding data waistline
Plus instant access to up to 7, 000 VOD shows and movies at no extra charge.
ENGADGET: DirecTV, ViaSat launch Exede satellite broadband and TV bundles
By definition, a new-car warranty comes with a new car at no extra charge.
FORBES: Saab Makes An Offer To Owners With No Warranty, But There's No Free Lunch