Costless
a. 没有成本的, 不需花钱的
✅ 同义词
🗣️ 情景例句
Hi, Michelle. It's Daddy.
嗨 Michelle 是爸爸。
This is your last chance. I believe you can make it.
这时你最后的机会，我相信你会成功的。
The baby was about ten months old. At first she was asleep.
那小孩大约10个月大。最初，她是睡着的。