We're excited about Earth Hour and hope you are too.

我们兴奋地期待地球一小时，并希望你们也是如此。

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I decided to spend an hour every night reading, thinking, and praying about why God put me on this earth.

但我决定每天晚上就上帝为什么会把我放在这个地球上的问题来花一个小时来阅读，思考和祈祷。

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But Earth Hour isn't about immediate energy impact, organizers say. Rather, it's about demonstrating commitment to change and serving as a jumping-off point for everyday actions.

但是“地球一小时”并不是要即刻便对能源问题产生影响，而是对我们担负着去改变的责任的展示。

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After about an hour of being beyond the pull of Earth's gravity, Glenn reported he felt fine.

VOA: special.2009.06.17

If future testing goes well and "if my wife allows, " Mr. Branson joked, he and his two children plan to be among the first six voyagers to ride the maiden flight of SpaceShipTwo to the edge of space, or about 60 miles above the Earth's surface, at a maximum speed of about 2, 500 miles per hour.

WSJ: Virgin Galactic Spacecraft Tests Its Rockets in Flight

Dragon's rendezvous systems had never been tested before in the harsh conditions of space, with the station and the capsule racing around the Earth in tandem at about 17, 000 miles an hour.

WSJ: SpaceX Craft Rehearses Moves

Organisers insist the aim of Earth Hour is to show that communities care passionately about climate change and want to keep up the pressure on governments to act decisively.

BBC: Cities dim lights for environment