noun 下载 🔗分享 女领导，女负责人 A female who directs; a directress. Examples : "As the directrix of the summer camp, Ms. Evans made sure all the activities ran smoothly. " 作为夏令营的女负责人，埃文斯女士确保所有活动顺利进行。 person job 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 准线 A line used to define a curve or surface; especially a line, the distance from which a point on a conic has a constant ratio to that from the focus. Examples : "In geometry class, Maria learned that a parabola is formed by all the points that are the same distance from the focus point as they are from the directrix line. " 在几何课上，玛丽亚学到抛物线是由所有到焦点距离与到准线距离相等的点构成的。 math technical 与AI对话词汇游戏阅读练习
