Helpfulness
n. 有益；有助
✅ 同义词
📖 牛津释义
helpfulness
n [U].
🗣️ 情景例句
Are the beaches safe for swimming?
在这儿的海滩游泳安全吗？
We have to go this way.
我们必须往这条路上走。
I think that they'll move in the day after tomorrow.
我想他们将会在后天搬进来吧。