Costless
a. 没有成本的, 不需花钱的
✅ 同义词
🗣️ 情景例句
Eleven o'clock, approve the sketches for the toy spaceship.
十一点钟， 批示玩具太空船的草图。
They who cannot do as they would,must do as they can.
不能如愿而行，也须尽力而为。
I'd like you to meet my parents, too.
我也想让你们见见我的父母。