Macrophages play a role in taking in and breaking down foreign substances in the body.

He can take in new information quickly.

He felt like there was a foreign body stuck in his throat.

He worked hard to accomplish his goals.

He found out that there was a foreign object inside his body.

His role is the team leader.

Disassembling this machine requires specialized knowledge.

He disassembled the bicycle and repaired it.

This cell is dividing very actively.

My biological clock is completely messed up.