他一看到针就晕了过去。

He fainted at the sight of the ___needle.

我仍然不喜欢针头扎进胳膊的感觉。

I still don't like the sensation of having a ___needle stuck in my arm.

医生小心地插入针头来抽取血液样本用于化验。

The doctor carefully inserted the ___needle to draw blood for the test.