Put on your favorite pair of fins and push off on your back with arms in streamline.

戴上你最喜欢的脚蹼，双臂和身体呈流线型，蹬壁出发。

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That's, there are whole courses on that, there's some great courses here on that, it takes some mathematical sophistication, we're going to push that off a little bit.

有一些课程是专门讲这个的，那些课一般都涉及，一些复杂的数学问题，我们只是简单的讲一些基础知识。

麻省理工公开课 - 计算机科学及编程导论课程节选

On flat terrain, such wax allows the skier to push off and on uphill climbs it prevents him from slipping backwards.

ECONOMIST: Skiing: Not waxing lyrical | The

People practically push each other over to get off and on the plane.

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We've been written off all the way through (the competition) and I'm sure we'll be written off in the final, but we'll push on and hopefully create even more history for Fulham.

BBC: Roy Hodgson proud as Fulham reach Europa League final