verb 下载 🔗分享 低声地笑，窃笑 To laugh or giggle in a somewhat subdued or restrained way, as from nervousness or poorly-suppressed amusement. Examples : "When the teacher tripped, the students tittered nervously, trying not to laugh out loud. " 当老师绊倒时，学生们紧张地低声窃笑，努力不让自己大声笑出来。 sound action emotion human character entertainment communication language 与AI对话词汇游戏阅读练习
verb 下载 🔗分享 摇摇晃晃, 颤巍巍 To teeter; to seesaw. Examples : "The stack of books tittered precariously on her head before finally toppling over. " 那摞书在她头上摇摇晃晃，颤巍巍的，最终还是倒了下来。 action sound 与AI对话词汇游戏阅读练习
