Conserving
[建] 保存
✅ 同义词
🗣️ 情景例句
She's come up with a new idea for increasing sales.
她想出了增加销售量的主意。
Who has never tasted bitter, knows not what is sweet.
不尝黄连苦，怎知蜂蜜甜。
What kind of problem.
什么样的问题呢？