The watermark is as one part of multimedia and strong enough to survive after some purchase.

被嵌入的水印可以是一段文字、标识、序列号等。

youdao

Desperate to hold on to something, to gain some purchase, Clive started to keep a journal, first on scraps of paper, then in a notebook.

因为渴望能留下些什么，克莱夫开始写日记，开始时只是在些零散的纸张上，后来开始写进日记本中。

youdao

He gave his son some money for the purchase of his school books.

他给儿子一些钱购买学校的课本。

youdao

Also,like the House bill, nearly all Americans would be required to purchase some form of insurance, while lower-income Americans would receive help from federal government subsidies.

VOA: standard.2009.12.24

I will be also making them available at Allegra for people who would like to just purchase them already printed out so you don't do it yourself, but I know some people really prefer to work online--and certainly for the first week of reading, you can get started because it is online.I don't think things will be available at Allegra's until probably tomorrow afternoon.

我也同样会让这些书的纸质版,能够出现在学校书店这样喜欢读纸质版的同学,就不用到处去买了，但我知道有一些学生更喜欢,在网上阅读，当然第一周的阅读材料都已经放在，放在网上了你们可以开始阅读，所有的阅读材料,在明天下午后都能在学校书店里买到。

耶鲁公开课 - 旧约导论课程节选

Both the Senate and House measures would require nearly all Americans to purchase some form of insurance, while lower-income Americans would receive help from federal government subsidies.

VOA: standard.2009.12.25

Some purchase items while leaving a few products under the cart.

FORBES: Why Do People Steal Meat From Grocery Stores?

While some people purchase land and build their own small homes through kits, like, Cusato Cottages, others just choose to buy or rent homes that are smaller in size.

FORBES: Pocket-(Sized) Listings: Homes Under 550 Square Feet for Sale

"The stock market is right now not valuing diversified media companies, so the board of the company has to decide they are going to take advantage of some of these very attractive offers to purchase some assets, " Bobrinskoy says.

NPR: Tribune's Plan to Cut Paper's Staff Sparks Revolt