An element of language that express es a definite image or idea, for example, the word tree.

一种表示确定的概念或观念的语言元素，例如字树。

youdao

You saw that in the way he stood bobbing his head, always looking down, nodding like a young boxer to instructions to make you think he was listening to every word, throwing in a thousand "yes"es and "that's right."

你看他站着摇头晃脑的样子，总是朝下看，像年轻的拳击手听指令时一样,那样晃着脑袋，好让你觉得他在听你说的每个字，一边不断附和着“是““对“

耶鲁公开课 - 1945年后的美国小说课程节选