同根派生 英汉例句Please pound up the soybeans. 请把黄豆捣成粉。The children pounded up the stairs. 孩子们吵闹地走上楼梯I pounded up the hill to the house. 我向山上的房子飞奔过去。Do not pound up the stairs! 上楼梯不要跺脚！Do not pound up the stairs ! 上楼梯不要跺脚！