It seems that the turn signal on the car is broken.

He passed the lie detector test.

He is involved in the research of particle accelerators.

Seismologists use seismographs to accurately measure the magnitude of earthquakes.

He honked the car horn to get my attention.

He exposed his own foolishness on Twitter.

This hospital has the latest defibrillator.

She is wearing braces.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.