Gainfulness
n. 唯利是图（原形是gainful）
✅ 同义词
🗣️ 情景例句
The meat's been marinating all night.
昨晚就把肉腌上了。
Riches do not always bring happiness.
富未必永远带幸福。
I wonder if they can make it.
我在想他们是不是能办得到。