He is managing this project.

She was told by the doctor that it is difficult to get pregnant due to a problem with her fallopian tubes.

He underwent surgery on his inguinal canal.

It seems like something is stuck in his trachea.

I am studying the philosophy of Guanzi.

This old radio uses a vacuum tube.

The male reproductive organs include the vas deferens.

The drainpipe is clogged and the water won't flow.

The exhaust pipe of my car has broken.

This old radio uses a cold-cathode tube.