Helpfulness
n. 有益；有助
✅ 同义词
📖 牛津释义
helpfulness
n [U].
🗣️ 情景例句
It won't sound like a big deal,
这事听起来没啥严重，
I will talk more about that in a moment.
目前我要多讨论那个问题。
He noticed that the straight part of the dance was different in the afternoon from what it had been in the morning.
他注意到下午舞蹈的直线部分与上午的不一样。