Aa big headache～aware of 44
Bb back and forth～by way of 79
Cc Ccall back～cut up 114
Dd Dday after day～dwell on 128
Ee Eeach other～expert at/in/on 137
Ff face to face～from time to time 155
Gg get about/around～grow up 176
Hh hand down～hurry up 193
Ii if not～intent on 223
Jj judging by/from～just so 226
Kk keen on～kill time 235
Ll last but not least～lots of 253
Mm mad about/on～my treat 265
Nn name after～now that 275
Oo off and on～over and over （again） 294
Pp particular about～put up with 305
Qq quite a few/a lot 305
Rr rain cats and dogs～rush hour 313
Ss save one’s breath～sure of/about 329
Tt take a leave～typical of 346
Uu uncertain of/about～used to 350
Vv vital to～void of 350
Ww wait for～would rather 357
Zz ziP code～zip（sb./sth.）up 358