80,on campus =在校内
$ N' P% B# @% T; _) t& | -Michel is the most talented actor on campus# N) g2 `# S9 ?4 R& d2 H
Isn’t he though?
; f/ |% Y! ^% G6 d) i5 C 81,on earth =究竟,到底
/ G7 C! \1 A8 [0 }3 v -How on earth can you believe that?
- Q% Q {0 [. S e$ W; M. ]0 l& E 82,on end = 连续,没完没了的
" V- w: O( s9 G( A8 } -Did Linda ever finish that introductory chapter?
+ T0 }# M: _' @5 V1 S$ q8 I I am not sure; she spent hours on end rewriting it: s- I; Y2 Q4 W- V& P8 |* @* p
83,on one's own =独立的,凭自己的力量: d2 K: C9 A- L( ]
-She learned to use the computer on her own
8 x4 V t' ?+ `( X7 q+ b8 b 84,on sale =减价
( j* g3 ]0 v% P. v' p -Did you buy any of the sweaters that were on sale?
3 | ?( R" E* r4 U* j U% K9 W Buy any, I got five of them, there were such a good bargain
/ }3 p: h4 ^0 R4 D6 l& T! C2 `7 E 85,on the dot =准时,正点
! _" E* v9 u9 J/ ~ -Did you and a man Amanda really meet exactly five minutes to two in front of the theater?2 w1 A3 y+ z4 q6 {' D# q- |3 o a
Yes, we were both there on the dot
" E5 {+ D- S% H3 c2 v; h& q9 I0 L- _ 86,on the side =兼职,副业4 Z5 ?$ Y" e. ^: D
-He has a job on the side preparing a libratory every day for the next experiments
% i7 n8 w4 X+ n0 L! F. c 87,once and for all =最后一次,干脆7 d* I: M( F3 q2 j: j# h
-I am going to tell that neighbor of mine to turn down that music once and for all
- a2 k K# k2 E" p4 k I see why you are angry, but I've always found that the polite route is the most effective |