perplexing

"The dolphins became entangled in a fishing net."

"He is a student of life."

"The science teacher conducted an experiment to demonstrate how plants grow in different types of soil. "

"Instruction will be provided on how to handle difficult customers."

"The complicated instructions for the science project perplexed the students. "

"This flow chart represents the assignment of tasks in our committee."

"The architecture of this clock is very intricate."

"The complicated instructions for the new software program confused many of the employees. "

"The sudden disappearance of my keys is really puzzling me. "

"My teacher explained the new math concept, and I understood it perfectly. "

"All the different possible options may bewilder us."

"The teacher complicated the math problem by adding several extra steps. "