Helpfulness
n. 有益；有助
✅ 同义词
📖 牛津释义
helpfulness
n [U].
🗣️ 情景例句
First, we have to decide where to live.
首先 ，我们得决定住在哪里。
Thank you for your kind cooperation.
谢谢您的合作。
So far as I know you shouldn't have any problems there.
就我所知，你在那里不会有什么问题的。