Yet our good fortune should not make us unappreciative.

然而，对于能够康或医学进步能带的康我们应该心存感激。

When you bite the hand that feeds you, you are being unthankful, ungrateful, unappreciative.

当你" bite the hand that feeds you" 时，你是懂得感恩的，忘恩负义的，领情的。

But that also might sound very unappreciative.

但这也可能听起领情。

They would willingly have subscribed to that soup-plate medal of which the criminal had spoken, but an unappreciative bench took a less favourable view, and the Killer returned to those shades from which he had just emerged.

他们本乐意订阅罪犯所说的汤盘奖章， 但是一个领情的长凳却太喜欢， 杀手又回到了他刚刚出现的那些阴影。