Helpfulness
n. 有益；有助
✅ 同义词
📖 牛津释义
helpfulness
n [U].
🗣️ 情景例句
By the way, what are you going to do on Christmas?
顺便问一下，圣诞节你打算做什么？
Some people are too conscious of how they dress.
有些人对自己的衣着过于考究了。
Someone is ringing the bell.
有人在按门铃。