「刚」和「刚才」

两个字都指最近发生的事。差几分钟。

我刚到。           I just got here.          刚刚
刚才他来过。       He was here just now.     几分钟前
刚开始。           Just started.             事情开始没多久

两张脸

中文	英文
刚（几秒前）	just + 现在完成 / 过去式
刚才（几分钟前）	just now / a moment ago
刚刚好	just right / perfect

just 的位置

I just finished.           ✅ 放助动词 / 动词前
I have just arrived.       ✅ 放 have 后
Just finished it.          ✅ 口语省主语

动手

我刚说了。

✅ I just said that.

刚才你在哪儿？

✅ Where were you just now? / A moment ago?

他刚走。

✅ He just left.

刚好五块。

✅ Exactly 5 bucks. / Just 5 bucks.

小坑

❌ I just now finished.
✅ I just finished. / I finished just now.

just 不跟 now 直接连。

just now 放句末：finished just now ✓

小卡片

刚（几秒）     →  just
刚才（几分钟） →  just now / a moment ago
刚刚好         →  just right / exactly
刚开始         →  just started

——下一课：「多亏」。