noun 下载 🔗分享 踱步者, 来回走动的人 One who paces. Examples : "Nervously awaiting the exam results, the pacer wore a path in the waiting room floor. " 焦急地等待考试结果，那个来回踱步的人把候诊室的地板都快磨出一条路来了。 person job sport 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 溜蹄马，平步马 In harness racing, a horse with a gait in which the front and back legs on one side take a step together alternating with the legs on the other side; as opposed to a trotter. Examples : ""The announcer explained that the pacer's unique sideways gait is different from the trotter's diagonal stride." " 解说员解释说，这种平步马独特的同侧步法与快步马的对角线步法不同。 animal sport race 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 起搏器, 步速调节器 A pacemaker. Examples : "My grandfather's pacemaker, or pacer, kept his heart beating regularly. " 我爷爷的心脏起搏器，也就是步速调节器，让他心脏能够规律地跳动。 medicine device 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 自动铅笔，活动铅笔 A mechanical pencil. Examples : "My favorite pacer is always in my backpack, ready for taking notes in class. " 我最喜欢的自动铅笔总是在我的背包里，随时准备好上课记笔记。 stationery writing item 与AI对话词汇游戏阅读练习
