appreciate是什么意思

　　I would appreciate it if you paid in cash.

　　假如你支付現金的話，我會不勝感激。

　　What I failed to appreciate was the distance between the two cities.

　　我沒有意識到這兩座城市間的距離。

　　We would appreciate the prompt return of books to the library.

　　若能及時將圖書歸還圖書館，我們將不勝感激。

　　His talents are not fully appreciated in that company.

　　他的才干在那家公司未受到充分賞識。

　　I don't think you appreciate how expensive it will be.

　　我想你不了解它會有多昂貴。