So, main meanwhile is going to change, but let's fast forward to the end just to confirm that all I did was copy and paste what was on the slide a moment ago.

所以，main同时要改变，快速翻到末端,来确认，我刚才所做的就是,在面板上复制粘贴。

哈佛公开课 - 计算机科学课程节选

Take the wooden slide that spirals down from the main living space down to them.

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The main cause for the slide seems to be his shelving of plans for an emissions-trading scheme to fight climate change, seen as one of his administration's main goals.

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You could add a pair of slide-out panels mounted behind the main display.

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