under the impression ----> get the impression
( Y7 s% |6 `7 V1 x under warranty ----> be broken
# d j& q: Z( Z, r& m understand ----> be sure // think
/ d7 s- B! Y) d# s underwater ----> on wet surface
+ S% r9 T0 g( L undo ----> all over again" {+ Z( n. N5 E g1 {+ g. e. i7 ^
unforgivable ----> can't be forgiven
5 @3 `0 y" p% G/ `# }- B unique ----> different
& @! h1 n/ c6 `0 ?" R3 G Unless I can get out of sth.! ----> Sb. be not eager to do sth。7 T w0 S! o% n9 t& H% C
unless sb. has to ----> only when necessary
+ l# j0 {/ b5 t! b: n# q up to date ----> catch up on9 T) \7 e5 O7 u6 W+ D& Q" O* N+ C
up to one's neck/eyes/ears in work ----> too busy
# l6 P- I1 [/ U) E5 R# j& P6 i3 ^3 u8 P2 a upside down ----> not correctly5 B* F4 B( N( V; H! m- i' R
use the stepstool ----> stand on sth。- f% E' I: R9 O2 o
used sth. // dirt cheap ----> very inexpensive, d2 c9 Y9 O, v5 |* z' s
used to be so sociable and open ----> now act less friendly* Q4 W6 s* b9 ~1 G( z
used to do sth. ----> no longer // once8 v- @! l+ | X3 b; z
used to live in ----> has moved out of
! E; G: ]4 F9 l/ ^2 V usually no ----> few
2 N: i$ ?% U3 L* a6 O9 L4 ] vacuum cleaner ----> dirty
/ |5 |+ l( o+ j' y vacuum the rug and polish the furniture ----> do some housework) W0 _! g# }/ a0 M
very impolite ----> show extremely poor manners
1 f0 [& [% [4 o, L/ _7 k very little ----> be limited |