橡树 / 下 / 铺满 / 了 / 橡子 / , / 孩子们 / 捡 / 了 / 一些 / 带回家 / 观察 / 。橡树下铺满了橡子,孩子们捡了一些带回家观察。The ground beneath the oak was covered with acorns, and the children picked up some to take home and examine.