To say "Have you slept?" in English, you can say "Did you sleep?" or "Have you been sleeping?"

The source of this phrase comes from the verb "to sleep," which means to rest in a state of unconsciousness. This verb is used in many different contexts to refer to different types of sleep, such as sleeping at night or taking a nap during the day.

Here are some examples of how you can use this phrase in English:

"Did you sleep well last night?"

"I didn't sleep at all; I was up all night working on a project."

"Have you been sleeping enough? You look tired."

In Chinese, you can say "你睡觉了吗？" to ask if someone has slept. Here are some examples of how you can use this phrase in Chinese:

"你昨晚睡得好吗？" (Did you sleep well last night?)

"我一整晚都没睡，因为在忙一个项目。" (I didn't sleep at all; I was up all night working on a project.)

"你睡得够了吗？你看起来有点累。" (Have you been sleeping enough? You look tired.)