New words：

update [ʌp'deit] v. 更新
update ['ʌpdeit] n. 更新;更新的信息

Sample Sentences：

They decided to update the computer systems.
I've been really busy these days, I haven't had a chance to update my blog.

You can download updates for free.
Some people's Weibo is filled with updates about what they are doing.

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