By implementing the plus and minus methods, I've overloaded both + and - and can now use them in my scripts. Listing 5 demonstrates their behavior to add and subtract songs from a play list.

通过实现plus和minus方法，我重载了+和-，现在可以把它们用在脚本中了。

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However, if students have a study and play schedule, plus the parents and teachers' supervision, Internet games cannot be threaten to study work.

然而，只要学生有学习和玩耍的安排表，加上家长和老师的监督，网络游戏不会成为学习成绩的威胁的。

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Plus, today's cell phone is not just for talking - it can be used to snap photos, surf the Internet, send email, play games, and more.

再加上当今的手机不仅可以用来通话， 还可以照相、浏览网页、发电邮、玩电子游戏等等。

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It's got an FM radio tuner, MiniDisc player and DVD player and recorder, plus will play and record music CDs.

FORBES: Magazine Article

This morning I took a spin through the AARP calculator and compared it to my last Social Security statement, and it was pretty close in terms of monthly benefits at age 62, 67 and 70, plus I could play around with the numbers to run different scenarios.

FORBES: How Big Will Your Monthly Payment Be? AARP's New Social Security Benefits Calculator

The nuclear shutdown plus the caprices of wind and sun could play havoc with electricity supplies unless new infrastructure is built quickly, warn the power companies.

ECONOMIST: Germany��s coalition