rarified

['rɛərifaid]

adj. 稀薄的, 机密的, 崇高的
=rarefied

例句与用法：

The rarest quality in an epitaph is truth.

墓志铭的难能可贵之处是真实。

Next to good judgment, diamond and pearl are the rarest things in the world.

次于真知灼见者，为钻石与珍珠为世上最罕有之物耳。