Meaning of zǐ dàn:
zǐ dàn
子弹
Noun
bullet; CL:粒[li4],顆|颗[ke1],發|发[fa1]
Shìbīng jiǎnchále tā de qiāng hé zǐdàn.
士兵检查了他的枪和子弹。
The soldier checked his gun and bullets.
Zhè bǎ qiāng zhōng hái yǒu sān kē zǐdàn.
这把枪中还有三颗子弹。
There are still three bullets in this gun.