Costless
a. 没有成本的, 不需花钱的
✅ 同义词
🗣️ 情景例句
And let Rita Mae do the selling at the boutique.
而让Rita Mae在时装店里负责销售。
Better good neighbours near than relations far away.
远亲不如近邻。
It's the hottest day I've had so far.
这是迄今为止我经历的最热的一天。