a.超速行驶b.在药物（或酒精）影响下开车c.肇事逃逸事故①todriveundertheinfluence②toexceedthespeedlimit③todrivethevehiclesafelyandcourteously④inflammableorexplosivearticles⑤tooccupyemergencylane⑥ahitandrunaccident