✅ 同义词
📖 牛津释义
thanklessness
n [U].
🗣️ 情景例句
Thanks very much. I'll read these.
非常感谢。我会看一下的。
Who knows not how to dissemble knows not how to live.
掩饰感情全不会，怎样生活必不知。
Many offices use answering machines to give information.
许多办公室使用留言机来提供信息。