Bartering
v. 作物物交换, 以货换货( barter的现在分词 )
✅ 同义词
🗣️ 情景例句
I don't know how she does it.
我不知道她怎么办到的。
Excuse me I couldn't help you.
对不起我不能帮助你。
It seems that the further cats fall, the less they are likely to injure themselves.
看起来，猫跌落的距离越长，它们就越不会伤害自己。