tympanic

"Brush your teeth."

"He is a very fragile person and gets easily depressed."

"The twins resemble each other."

"He entertained us wonderfully."

"He examined the crime scene for clues."

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The archaeologist carefully brushed dirt away from the ancient pottery. "

"The cell membrane controls what enters and leaves the cell. "

"Please relate the circumstances of your journey here today."

"The phone vibrates in my pocket when I get a text message. "

"The resonant of the singer's voice filled the small concert hall. "

"The infection spread quickly through the classroom after one student got sick. "