我需要一根针来缝衣服。
wǒ xūyào yīgēn zhēn lái féngyīfú 。
I need a needle to sew the clothes.
医生给我打针时，我有点紧张。
yīshēng gěi wǒ dǎzhēn shí ， wǒ yǒudiǎn jǐnzhāng 。
I was a bit nervous when the doctor gave me an injection.
这把针很细，适合缝合小伤口。
zhè bǎ zhēn hěnxì ， shìhé féng hé xiǎo shāngkǒu 。
This needle is very thin and suitable for stitching small wounds.