462. name after 用…的名字命名
463. native to 所产的
464. by nature 天生的, 生来
465. in mature 本质上
466. (be) in the nature of 属…性质
467. none other that 不是别人,正是…
468. above normal 高于正常(温度)
469. for nothing (=free, without payment)免费
470. nothing but 只有, 不过…而已
471. to say nothing of(=not to mention)更不用说…
472. do sth. at short notice 只给很少时间准备
473. until further notice 在另行通知前
474. take notice of (=pay attention) 注意
475. object to (=be opposed to) 反对
476. objection to (接动名词) 反对
477. on occasion(=now and then)不时地,必要时
478. by occasion of (=because of) 由于
479. occupy oneself with (in) 忙于(某事)
480. it occurs to sb. that… 某人想到…
481. once and for all =once and forever永远地 all at once (=suddenly, now) 立即,马上 once in a while (=occasionally) 偶尔 (just) for once 就这一次
482. (all) by oneself 独自(没有别人帮助)
483. operate on sb. 给某人做手术 operation n. come go into operation开始运转 putbring sth. into operation 使…投产,运转
484. be of the opinion 持有…的看法
485. in one's opinion 按某人的看法
486. be opposed to… 反对…
487. be opposite to 与…相反的
488. (be) in order(=acceptable)合适的,恰当的 in order 井井有条,处于良好状态; out of order(=in bad condition)出毛病,发生故障
489. made to order 定做的(衣服)
490. originate infrom(=begin)起源于,由……引起
491. on the outskirts (of) 在城郊