Explanation: Difficult thing to describe Examples: Donations to the miser, then it is ~.
French Expression
adj. très difficile à atteindre
Thesaurus
not likely to happen in a century, once in a blue moon, walk with difficulty, fish for a needle in the ocean; look for a needle in a haystack, Sea Fishing, Makes all things easy, bark [bay] at the moon [bay the moon], the sound of footsteps in a deserted valley-a news or a statement which one does not hear often,or a thing that was seldom to found, Rarities, once in thousand years, sth.seldom seen or hardly possible as the iron tree blooms, Hard-won, defy Beyond the bounds of, strength of nine bulls and two tigers,mighty force, doomed petition like asking a tiger for its hide, Leather and Fox plan
Antonym
as thick as June blackerries, Have no choice but Shengji, Just to stoop and gather Are all, Attracting attention Are all, common and numerous, Even flat-bed truck, ubiquitous, overrun, cataclysm crosscurrent