cocoons造句怎么写

The bright smudges are dusty cocoons containing massive embryonic stars, which will grow up to 10 times the mass of our sun.

The silk filature, which they reached after a 270-1i journey by water, offered extremely harsh terns- Only thirty-Five dollars a load for foreign breed, twenty for local; thin cocoons not wanted at any price.

In the nearby factory behind rusted gates, 40 workers toil at machines that transform cocoons into silk thread.

The cocoon-to-butterfly theory only works on cocoons and butterflies.

I believe the painful nights that close in on all of us in some form are the cocoons from which we might shed our weaknesses.