up in arms

起来进行武装斗争

unwillingly, unwillingness, unwind, unwise, unwisely, unwitting, unwittingly, unwonted, unworkable, unworldliness, unworldly, unworthily, unworthiness, unworthy, unwound, unwritten, unyielding, up, up and doing, up and down, up to, up to date, up to time, up-, up-and-coming, up-country, up-end, up-market, up-to-date, up-to-the-minute, upbeat, upbraid, upbringing, upcreep, update, updating, upgrade, upheaval, uphill, uphold,