数量正好英语怎么说

"Exactly" 是表示 "数量正好" 的常用英语词汇。

来源："Exactly" 源自拉丁语 "exactus"，意思是 "划线圈住的" 或 "分析出来的"。

例句：

I need exactly three eggs for this recipe. (我这道菜需要正好三个鸡蛋。)
The store only had exactly the amount of fabric I needed. (商店里只有我需要的那么多面料。)
Can you give me exactly $20 for this? (你能给我正好20美元吗？)