withinprep.在(某段时间、距离或范围)内；在…里面adv.在…里面n.内部within hailadv.在附近within sightadj.在望(在眼前)within cooee在近处; 近得可闻within range在射程内within doorsadv.在屋内within reachadj.在附近(距离不远)within assay批内分析within touchadj.在 ... 附近能达到的within limit在一定的范围内within graspadj.力所能及