(historical)serving as an ordinary seaman in a sailing ship (quartered in the forecastle)
(史)作为普通水手
declare openly and firmly what one believes or favours
公布信仰；表示坚决支持
they nailed their colours to the mast of youth revolt.他们公开表示坚决支持青年人的反叛。
they nailed their colours to the mast of youth revolt.
他们公开表示坚决支持青年人的反叛。