Please speak slowly
慢点───slow down;说───say
Slow down—I can't keep up!───慢点—我跟不上了！
Slow down or you'll get a ticket.───慢点儿，否则你会接到一张罚款通知单。
There was a sign telling motorists to slow down.───有一个让汽车司机减速的指示牌。
The extra weight of a single passenger and his bags did not seem to slow down the animals' speed.───背上多坐一个人再加上他的行李重量，似乎不会减慢这种动物的跑步速度。
Slow down to greet someone you know. You don't have to stop what you are doing (walking, working, shopping).───放慢动作来同认识的人打招呼，不必停下（脚步，工作，购物）。
As I've lived long enough to know that, other than telling her to slow down and breathe, there's no logical advice to give.───这么多年的经历使我明白，除了让她平静下来，深呼吸以外，并没有什么合理的建议。
Slow down - you're driving too fast.
Would you slow down, please?
You drive round corners too fast - just slow down a bit!
Slow down your car.
Friction gradually caused the sliding box to slow down and stop.