Meaning: This sentence is about a child who fell asleep quickly.
Choice of Words: Child, fell, fast, asleep are all common words that are easy to understand for an English learner.
Alternative Expressions
The child drifted off to sleep.
Meaning: This sentence also means that the child went to sleep, but it emphasizes the gentle and peaceful nature of the child's sleep.
Choice of Words: The word drifted is a verb that means to move slowly and gently. Off means to move away from something. To sleep means to enter a state of sleep. When you put these words together, you get a sentence that describes a child who slowly and gently fell asleep.
The child was soon lost in slumber.
Meaning: This sentence means that the child fell asleep very quickly and deeply.
Choice of Words: The word soon means to happen in a short amount of time. Lost means to be unable to find or locate something. Slumber is a noun that means sleep. When you put these words together, you get a sentence that describes a child who quickly fell into a deep sleep and was unable to be woken up.