Costless
a. 没有成本的, 不需花钱的
✅ 同义词
🗣️ 情景例句
Many shopping malls and supermarkets can deliver goods straight to your door.
许多购物中心和超市提供免费送货上门服务。
As this is a special offer, we hope you won't miss this opportunity.
因这是特殊报价，希望您不要错失良机。
In the torchlight, he caught sight of a figure whom he immediately recognized as Bill Wilkins, our local grocer.
借着电筒光。他看见一个人，马上认出那是本地杂货店主经比尔。威尔金斯。