ATRCn.反跟踪操作装置atprep.在；向；达n.基普(老挝货币基本单位)(=att)；[化]砹(极不稳定放射性元素)abbr.密封的(=airtight)abbr.气温(=air temperature)Athetis cinerescensn.灰委夜蛾atrial ectopic beat心房异位搏动at this very momentadv.此刻Atenolol injections阿替洛尔at a single winding绕一次,上一次发条atrio-ventricular房室的at the same time of在 ... 的同时at the reverence of对 ... 尊敬地at the buyer's riskat one's wit rs end