英和和英

primp and preen

pro and con

incomings and outgoings

front and back of surfaces, etc

plus and minus

the former and the latter―the one and the other―one and another

sign and countersign

conclusion of peace

rupture of peace negotiations

the imaginary longitudinal and latitudinal lines into which th earth is divided

original and copy

do's and don'ts

transmission and reception of a message

divisor and dividend

probe-and-drogue

longitude and latitude

reach and board

ifs and buts

a passed candidate

a successful candidate

warp and woof

the method of addition and subtraction

receiving orders and doing resale

comings and goings

merits and faults―merits and defects―merits and demerits

admissions and secessions

hit-and-run units

punctuation marks

strengths, weaknesses

an act of removing and inserting