Helpfulness
n. 有益；有助
✅ 同义词
📖 牛津释义
helpfulness
n [U].
🗣️ 情景例句
This dance show is very strange indeed.
这场舞蹈表演真是奇怪。
Do you ever play basketball after school?
你曾经在放学后打篮球吗？
Look at the snow! It's quite light.
瞧这雪！这么小。