Senses
一会儿/ 一會兒 a little while
a brief period of time; a moment; in a moment; in a little while
一会儿/ 一會兒 [one moment ... the next ...]
Used before verbs or adjectives to describe two states or actions that alternate quickly, meaning "one moment... the next..." or "now... now..."
一会儿/ 一會兒 time
a specific moment or period of time