达德内氏针的英文：
Dattner needle

needle是什么意思：
n. 针；指针；针状物；刺激
v. 刺激，激怒；用针缝，刺；缝纫

The needle stuck in my finger.
针扎进我的手指了。

To look for a needle in a Bundle of hay
海底捞针

Searching for a needle in a haystack
大海捞针

needle leave wood
针叶木

He broke the blister with a needle.
他用针挑开水疱。