Helpfulness
n. 有益；有助
✅ 同义词
📖 牛津释义
helpfulness
n [U].
🗣️ 情景例句
My son must have put you to a lot of trouble.
我儿子一定给你带来不少麻烦。
He seems to be the most muscular guy.
他看起来似乎最魁伟。
It looks like the moon. There are many different kinds of mooncakes.
它看起来像月亮。月饼的种类很多。