Costless
a. 没有成本的, 不需花钱的
✅ 同义词
🗣️ 情景例句
I wish she were here with us to enjoy the country.
我真希望现在她就和我们在一起享受这乡村美景。
How do I address you?
我怎么称呼你？
Tom said that he was feeling ill.
汤姆说他不舒服。