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1·The carpet of pine needles was soft underfoot.

松针铺成的地毯在脚下软软的。《柯林斯英汉双解大词典》

2·Her mother counted the stitches on her knitting needles.

她的母亲数了数编织针上的针数。《柯林斯英汉双解大词典》

3·The trees formed such a dense canopy that all beneath was a deep carpet of pine needles.

这些树形成了浓密的冠盖，下面是一层厚厚的松针。《柯林斯英汉双解大词典》

4·I gave Kevin a course of acupuncture using six needles strategically placed on the scalp.

我给凯文进行了一个疗程的针灸治疗，把6支银针分别扎在头皮的关键穴位上。《柯林斯英汉双解大词典》

5·By burning tree branches, pine needles, and pine cones, many not only warm their houses but improve the smell therein.

通过燃烧树枝、松针和松果，许多人不仅给屋子供暖，而且还改善里面的气味。《柯林斯英汉双解大词典》

6·For example, pine trees drop pine needles.

例如，松树会掉落松针。

7·Those needles add a lot of acid to the soil.

这些松针给土壤增加了很多酸性。

8·When I say, leaves, I mean pine needles too.

我说的树叶，也包括松针。

9·The huge fir trees dropping their needles one by one.

高大的冷杉树针一根根从树上掉下来。

10·Now imagine a pine tree with all those little densely packed needles.

现在（大家）想象一棵布满了密密麻麻的小针叶的松树。

(1)pins and needles如坐针毡；焦躁不安；手脚发麻

(1)needle valve针阀；针状活门

(1)on the needle[美国俚语]注射毒品的，有毒瘾的

(1)needle roller滚针；卷叶虫

(1)needle bar针杆；针把

(1)needle biopsy穿刺活检；针吸活组织检查