英文: The wheels crunched the gravel .
中文: 车轮碾在碎石上嘎吱嘎吱地响.英文: The wheels crunched the gravel.
中文: 车轮碾在碎石上嘎吱嘎吱地响.英文: Lemme outta here! Giddyap! Thscratch gravel!
中文: 我要从这逃出去!驾!该死的路面!英文: Layered gravel and charcoal to make a filter.
中文: 将砂砾和木炭分层以做成过滤器英文: 1 The soil is a gravel if the percentage of gravel is estimated to be more than the percentage of sand.
中文: 1如果砾的百分含量比砂的百分含量估计的多,这个土就是砾石.