The direction of the wind is constantly changing.风向在不断变化。

We are constantly being reminded to cut down our fat intake.我们不断被提醒要减少脂肪的摄入量。

Gradually add milk, stirring constantly.逐渐加入牛奶, 同时持续搅拌。

I am constantly aware of the need to keep quiet.我总是感觉到需要保持安静。

Her own life is constantly under threat.她自己的生命始终处于危险之中。