One day, they heard a strange noise.

Meaning: This sentence introduces an event that breaks the animals' peaceful existence and piques their curiosity.

Choice of Words: One is used to specify an unspecified day in the past. Day refers to a 24-hour period. Heard means they perceived a sound with their ears. Strange describes the sound as unfamiliar or unusual, and Noise refers to a loud or unpleasant sound.

Alternative Expressions

Related Expressions