A four-oared galley is hovering about.

一艘四桨小艇，在四下游弋。

You can see problems that aren't appear in a double-spaced Courier typescript. ( Yes, you could do this in the old days on galley proofs, but that was an expensive luxury for most writers).

（没错，以前在毛条校样时也能发现问题，但这对于多数作家来说，不讨好）。