Costless
a. 没有成本的, 不需花钱的
✅ 同义词
🗣️ 情景例句
In Thailand we greet strangers as long lost friends.
在泰国我们跟陌生人像失去联络好久的老朋友一样打招呼。
Have him return my call.
让他给我回电话。
He became a supporter of the poorest group in society, who did the lowest-paid jobs.
他成为社会中那些从事工资最低的工作的，最穷种姓的支持者。