線是可數名詞還是不可數名詞

It took me a long time to thread my way through the crowd.

我花了很長時間才從人羣中擠過去。

The author skilfully draws together the different threads of the plot.

作者嫻熟地把情節的.各種線索串聯在一起。

A common thread runs through these discussions.

這些討論都貫穿着一條共同的主線。

A tiny wire is threaded through a vein to the heart.

一根細金屬絲從靜脈裏穿到心臟。

She snipped at the loose threads hanging down.

她把垂下來的線頭剪掉。