It follows that if we guide air through a narrowing slot it must go faster and faster to get through and if the exit is smaller than the entrance we have a definite suction at the exit.

它如下，如果我们引导的空气通过一个缩小插槽必须去快，获得通过的话，出口小于入口，我们有一定的吸力在出口。

youdao

Thee cars run faster, the tracks are higher, and you must be ready to go through twists, loops and drops.

车子飞得更快了，车轨架得更高，你必须准备好穿越麻花状的的，环状的和下落的路线。

youdao

Like walking, like step taken must be followed by his right foot after foot, you will go more stable and faster;

就像走路一样，迈出左脚后必须接着迈出右脚，你才会走得更稳、更快；

youdao

"Government reforms are heading in the right direction, but are not sufficient on their own and must go further and faster, " he said.

BBC: CBI complains of 'exam factory' schools