since time immemorial	for a long time/ throughout history
to take the initiative	to be the first person to act
to add insult to injury	to exacerbate, to make bad things even worse
to make inroads into sth	to affect sth negatively, destructively
in the interests of sth	in order to achieve a certain aim
in the interim	in the meantime
to take issue with sb	to disagree and start arguing
to have itchy feet	to have a strong desire to travel
to be in jeopardy	to be in danger
in a jiffy	quickly
to jog one's memory	to make one remember sth
to jump for joy	to be extremely pleased/happy
to reserve judgement on sb/sth	to postpone giving an opinion before more is known
to do sb/sth justice	to reproduce sb/sth accurately and show how good it is
rough justice	unfair and unjust treatment
safe in the knowledge	confidently
out of print	(of books) not available any more
to be in one's prime	to be at one's best
to be past one's prime	growing old/ not at one's best
to come to the point	to reach the main point in a discussion
to be out of practice	lacking practice
off the point	irrelevant
to pop the question	to make a proposal of marriage
part and parcel of sth	basic part of sth
out of the frying pan into the fire	from a bad situation to a worse or similar one
a bitter pill to swallow	a difficult fact to accept
to fall into place	to become clear