le fil 用英语:

silk thread

This thread tangles easily.

the delicate threads of a spider’s web;

She used silk thread in sewing her dress.

threading the line

One of the main threads of the film is the development of the relationship between the boy and his uncle.

A thin thread of light made its way through the curtains.

The sari had gold strands threaded through the material.

I found a tiny black ball of thread and I told Manny it was a spider

... thread or a productivity thread.

There’s a common thread linking the different chapters of the book. Halfway through the film I started to lose the thread (= not understand the story)

An example of thread is the string that is used for sewing two pieces of fabric together.

Internet threads are often dominated by a small number of angry people

She passed the thread through the pinhole and quickly mended the tear.