noun 下载 🔗分享 教材，教学材料 A book, film, etc. intended to instruct. Examples : "A well-made instructional can help you learn a new skill quickly. " 制作精良的教学材料能帮你快速学会一项新技能。 education media literature 与AI对话词汇游戏阅读练习
adjective 下载 🔗分享 教学的，指导性的 Intended for purposes of instruction, for teaching. Examples : "The manual might have been instructional had anybody actually taken the time to read it." 如果当初有人肯花时间读一读，这本手册或许还能起到教学指导的作用。 education communication 与AI对话词汇游戏阅读练习
