thwart

中文： 划手座板、横梁

1. A seat across a boat on which a rower may sit. · The fisherman sat on the aft thwart to row.
2. A brace, perpendicular to the keel, that helps maintain the beam (“breadth”) of a marine vessel against external water pressure and that may serve to support the rail. · A well-made dugout canoe rarely needs a thwart.

复数 thwarts