Seth:Actually, your walking pace naturally slows down when you grow older.

但事实上年纪大了，走路速度自然就会变慢。

Seth: Actually, your walking pace naturally slows down when you grow older.

但事实上年纪大了，走路速度自然就会变慢。

But oxygen deprivation slows brain function and can have sudden, noticeable effects.

但是氧气的缺乏会使大脑功能变慢，从而造成突发的、极为明显的影响。

For most fruits, the respiration rate slows down after the initial growth stage and the fruit ripens slowly.

呼吸作用会在生长初期过后减弱，水果的成熟过程也会变慢。

Somewhere in the process, my brain slows down and it becomes excruciating to think properly for what seems like a long stretch in the afternoon.

在这个过程中，我的大脑变慢了，而下午有很长一段时间都会觉得用脑是一件痛苦的事。

If humanity ever does build such awesome ships, the fact that time slows down for near-lightspeed travelers won't make the ships themselves go any faster or slower.

如果人类真能制造出那样的飞船，事实是对于那些近光速飞行的人来说时间的速度会变慢，但那不会使得飞船本身的速度加快或减慢。

The top will precess as it slows down.

陀螺在减速时会旋进。

Your metabolism slows down as you age.

随着年龄的增长，你的新陈代谢会减慢。

When you luff the sail, the boat slows down.

当你扬帆时，船会减速。

The frictional force slows down the moving object.

摩擦的力减慢了移动的物体。