If you look at the top of your phone, you will usually see a little symbols that says 3G or 4G. The G means "generation" of your mobile network.

你看一下手机的顶部，你通常会看到一些小符号，上面写着 3G 或 4G。G 的意思是移动网络的“一代”。

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This is the fastest EMU train running for long distances in China, the top speed of which could reach 350km/h. Currently, the G train could finish the 1068 kilometer Wuhan Guangzhou High-Speed Railway in 3 hours.

这是中国长距离运行的最快 EMU 列车，其最高速度可达350公里/小时。目前，G 型列车可以在3小时内跑完1068公里的武广高铁。

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People in the G-7 nations may be living anywhere from 1.3 years to 8 years longer than official estimates now predict.

居住在七大发达工业国家的人们的寿命比现在官方预测的要多1.3年到8年。

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Another concern is that trade partners may consider the G.M.rescue a form of government support barred by free trade agreements.

VOA: special.2009.06.05

That is,it cuts between the G and the A here, and it cuts between the G and the A here.

就是说,它从这里的G和A之间切开,从这里的G和A之间切开

耶鲁公开课 - 生物医学工程探索课程节选

For example, if t* is the time you hit the ground, then t* satisfies the equation h - 1/2 g ^2 = 0.

例如,如果在 t* 时刻落地,那 t* 就满足等式 h - 1/2 g ? ^2 = 0

耶鲁公开课 - 基础物理课程节选

In Britain we are cutting corporation tax to just 20%, the lowest rate in the G-7.

WSJ: David Cameron: A British-American Tax and Trade Agenda

Now of course the G-20 in Seoul is sure to be a glorified photo-op.

FORBES: The US is Missing a Historic Economic Opportunity

Also at the G-8 today, Russian President Vladimir Putin made an unexpected proposal on missile descents.

NPR: Missile Defense, the U.S. and Europe