noun 下载 🔗分享 蓝颜知己，好哥们。 An especially close and trusted friend. Examples : ""I told my bf everything about my problems with my math class." " 我把数学课遇到的所有问题都告诉了我的蓝颜知己了。 person human family character communication 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 宝器，神器 An object or concept considered very useful or helpful. Examples : "For a student struggling with math, a reliable calculator is a real bf. " 对于一个在数学上挣扎的学生来说，一个靠谱的计算器简直是个神器。 utility aid thing asset value 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 粗体，黑体字。 A font that is dark, having a high ratio of ink to white space, written or drawn with thick strong lines. Examples : "The boldface (bf) in the textbook helped the students quickly find the key definitions. " 课本里的粗体字(cūtǐzì)帮助学生们快速找到关键定义。 type writing style communication 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 男朋友，男友。 A male partner in an unmarried romantic relationship. Examples : ""Sarah's bf is helping her study for her math test." " 萨拉的男友正在帮她复习数学考试。 family person human 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 男朋友, 男友 A male friend. Examples : "Maria introduced her friend Tom, explaining, "He's just a bf from my English class." " 玛丽亚介绍了她的朋友汤姆，解释说：“他只是我英语课上的一个男友。” person human family communication 与AI对话词汇游戏阅读练习
