Also,the continents and the ocean floor are not made of the same kind of rock.

VOA: special.2010.01.12

Everybody's going to put the cup down and assumes it's going to stay there but not fall to the floor.

每个人放下杯子时,都会假设杯子会稳稳地搁在那里,而不是掉在地上。

普林斯顿公开课 - 人性课程节选

Weep no more, woeful Shepherds weep no more For Lycidas your sorrow is not dead, Sunk though he be beneath the wat'ry floor, So sinks the day-star in the Ocean bed, And yet anon repairs his drooping head.

诗歌大意：，悲伤的牧羊人们不要再哭泣,利西亚斯并没有死去，虽然他被海水吞没，启明星也会沉入海底，不久便会修复他疲惫的头颅。

耶鲁公开课 - 弥尔顿课程节选

The Council explains on its Web site that early tall buildings were generally measured from the ground floor to the top of the building, not including flagpoles.

VOA: special.2010.03.31

You feel heavy and it reads more because the poor spring not only has to support you from falling through the floor, but also accelerate you counter to what gravity wants to do.

你感到自己变重以及读数增加,因为现在弹簧不仅要支撑你,不让你掉下来,还要抵消重力的作用让你加速

耶鲁公开课 - 基础物理课程节选

Amid concerns voiced by Republicans about possible further delay, Congressman Berman said he intends to ensure the bill's progress to the House floor is not slowed.

VOA: standard.2009.10.28

You are pushing down with the weight mg, and the floor has got to be pushing up with the mg, because the spring is not going anywhere.

你向下的作用力是重力 mg,然后地面向上的支持力也是 mg,因为弹簧现在根本没动

耶鲁公开课 - 基础物理课程节选

A little farther down Granville Street is the Granville Sports Corner shop, a small,dimly lighted shop with every centimeter from floor to ceiling crammed with commemorative team gear not just Canada, but also Switzerland,Germany, the Czech Republic, the United States and Finland.

VOA: standard.2010.02.17