451. be in a mess y߰, ̎y make a mess of Ūy, y
452. bear(or keep)in mind(=remember)ӛ
453. bring(or call)to mind(=remember)ʹ
454. by mistake(ڴ,ԭ)e`
455. at the moment (=now) ˿,F(xin)
for the moment (=for the time being)r
just a moment ԵƬ at the last moment һ
456. in the mood for wȥ..,ľ.
457. no morethan ͡һӶ
458. for the most part ,(sh),һf
459. at (the) most ,
460. make the most of
461. be not much of(=not a good)Ǻܺõġ
be something of c(din),
462. name after á
463. native to a(chn)
464. by nature ,
465. in mature |(zh)
466. (be) in the nature of ١|(zh)
467. none other that DŽe,ǡ
468. above normal (ض)
469. for nothing (=free, without payment)M(fi)
470. nothing but ֻ, ^
471. to say nothing of(=not to mention)f
472. do sth. at short notice ֻoٕrg(zhn)
473. until further notice ֪ͨǰ
474. take notice of (=pay attention) ע
475. object to (=be opposed to)
476. objection to (ӄ~)
477. on occasion(=now and then)r,Ҫr
478. by occasion of (=because of)
479. occupy oneself with (in) æ(ij)
480. it occurs to sb. that ij뵽
481. once and for all =once and foreverh(yun)
all at once (=suddenly, now) ,R
once in a while (=occasionally) ż
(just) for once @һ
482. (all) by oneself (d)(]Єeˎ)
483. operate on sb. oijg(sh)
operation n. come go into operation_ʼ\(yn)D(zhun)
putbring sth. into operation ʹͶa(chn),\(yn)D(zhun)
484. be of the opinion СĿ
485. in ones opinion ij˵Ŀ
486. be opposed to
487. be opposite to c෴
488. (be) in order(=acceptable)m,ǡ(dng)?sh)?/P>
in order Зl,̎àB(ti);
out of order(=in bad condition)ë,l(f)
489. made to order (·)
490. originate infrom(=begin)Դ,..
491. on the outskirts (of) ڳǽ
492. oweto ѡwڡ
493. on ones own (=along, without help)Ϊ(d)
494. of ones ownijԼ
495. keep pace with RǰM(jn)
496. go to great pains=take pains ¹,Ŭ
497. part with (=give up, sell) ᗉ,u
498. participate in (=take part in)
499. (be) particular about v,(,)
500. in particular (=especially) e,
]