Even though carbon dioxide is less insulating than methane, it stays in the atmosphere longer, so we may want to get cracking on it right away.

即使二氧化碳与甲烷相比，其隔热性较差，但是它在大气中停留的时间较长，所以我们需立即解决二氧化碳的问题。

Most tickets have been snapped up,so get cracking if you want one.大部分票都被一抢而空了，想要的话得赶快行动了。

Kevin Rudd has repudiated the foreign policy style of the Howard government by announcing Australia will push for membership of the United Nations Security Council in five years.

Following a weekend meeting at the UN headquarters with the Secretary-General, Ban Ki-moon, Mr Rudd said Australia had last sat on the 15-member body in 1986 and it was time it had a more effective voice in the world.

"It's been a long time between drinks," he said. "We're about to have a go（尝试）. I think 30 years is a fair enough old wait between drinks and I think it's time we actually got cracking."