单词学习：viper 名词
viper
/ˈvaɪpər/
毒蛇；蝰蛇；阴险恶毒的人
Gu Laoshi warned the students to be cautious, as the path was known to be a habitat for vipers.
顾老师警告学生们要小心，因为这条小路以是毒蛇的栖息地而闻名。
单词卡片
卡片已就绪
