Threonine is one of the essential amino acids necessary for the human body.

She tidied up her hair, which was like tangled thread.

His mind was in confusion like a tangled thread.

I am attending cooking classes to learn the technique of filleting fish.

Whenever he faced a difficult situation, he always said, 'The best of the Thirty-Six Stratagems is to run away.'

He warned the young people, saying 'At thirty, one should not be careless, at forty, one should not be indecisive.'

This is a model of a muoctahedron.

He continues to practice in search of complete enlightenment.

He was envious of her success.

He was wrapping the present.