If, with the right kind of luck, it comes off, it should be comparable in effect to a compulsory guided tour through the engine room, with myself, as guide, leading the way in an old one-piece Jantzen bathing suit.
There are no more uses of "compulsory" in the book.
Show samples from other sources
In most schools physical education is compulsory.
Education is compulsory for young children in the United States.