教室里孩子们的吵闹声简直是一片嘈杂。
The classroom was filled with a ___babble of children's loud chatter.
小溪在鹅卵石上潺潺流过。
The creek ___babbled over the pebbles.
小溪在岩石间潺潺作响。
The small stream ___babbles among the rocks.