难以满足的、难平息的 implacable
他对新奇的东西有一种难以满足的爱好。
这有着过度的体能，联合着行动及刺激的难以满足的渴望。
There is too much physical energy coupled with a voracious appetite for action and excitement.
对高楼来说，这是难以满足的要求，但是，包括该中心以及一个强大社区在内的非营利性组织认为他们能够做到。
That's a tall order for a tower, but the collection of non-profits that comprise the Center, along with a strong community, feel up to it.
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