481. once and for all =once and forever永远地$ T0 F& Q& @6 q* K# ?/ q
all at once (=suddenly, now) 立即,马上
; f- i. _! e i5 X0 y once in a while (=occasionally) 偶尔0 Y/ Z2 D$ n3 u% m* j7 n$ u, d
(just) for once 就这一次
/ U7 `2 m6 z- P9 x. T6 x$ V& U/ Y 482. (all) by oneself 独自(没有别人帮助)
' g/ f9 w# h+ Q+ t 483. operate on sb. 给某人做手术
. u3 J4 {7 i/ s5 f- Q9 ` O operation n. come/ go into operation开始运转
9 G/ {$ x; _8 ? put/bring sth. into operation 使…投产,运转# `+ s1 v+ h6 a4 @( b/ f5 h* W; C
484. be of the opinion 持有…的看法# q* a$ ]8 f+ I x; W1 G
485. in one’s opinion 按某人的看法3 ?# K' Q) J1 R, W% L! K) |5 t) w
486. be opposed to… 反对… e% A9 C& j) a% e
487. be opposite to 与…相反的 u9 a( F% _% |! G$ P4 y4 w
488. (be) in order(=acceptable)合适的,恰当的# B; x$ d) Y; }$ w1 R$ a+ W7 Q: X
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# S {+ l# V g* j% u8 m: l
489. made to order 定做的(衣服)
# P0 r3 p$ N, m# i. s. H- A 490. originate in/from(=begin)起源于,由..引起8 y' |, Y' X8 m4 {, S, w
491. on the outskirts (of) 在城郊
' U* X0 C/ A! U 492. owe…to 把…归于…
$ o! X9 k: n1 m! e 493. on one’s own (=along, without help)单独( w: V( G# i: u9 V
494. of one’s own某人自己的% i! b5 P9 m3 ~8 u
495. keep pace with 跟…齐步前进
C% H" G% [, w. N5 ]- E 496. go to great pains=take pains 下功夫,努力
; n+ @6 t0 U) n0 v/ m( s5 Y 497. part with (=give up, sell) 舍弃,卖掉
- u0 G- ~& L1 B f8 S. a6 q 498. participate in (=take part in)参加
+ b% G& r0 \3 [( R5 E% s 499. (be) particular about 讲究,挑剔(吃,穿): |+ b+ Y1 m2 x7 U% }' |# }9 ?6 Q
500. in particular (=especially) 特别是,尤其 |