1、obligation

義務;責任

When teachers assign homework, students usually feel an obligation to do it.

老師布置作業時，學生通常認為完成作業是一種義務。

Ministers are under no obligation to follow the committee's recommendations.

部長不必非得聽從委員會的建議。

(照顧某人或保護某人利益的)義務，責任

The United States will do that which is necessary to meet its obligations to its own citizens.

美國將為自己的公民盡其應盡的義務。

I have an ethical and a moral obligation to my client.

我對我的當事人負有道義上的責任。

(廣告中產品或服務)免費試用地，免費體驗地

If you are selling your property, why not call us for a free valuation without obligation?.

如果您打算出售房產，何不打電話讓我們作免費估價呢？

You can review your policy in detail for a full 15 days without obligation.

您可以在15天的免費體驗期內仔細審核保單細則。

2、appreciate

欣賞；鑒賞；賞識

Anyone can appreciate our music.

任何人都能欣賞我們的音樂。

In time you'll appreciate the beauty and subtlety of this language.

總有一天你會體會到這門語言的優美和微妙之處。

領會；了解；認識

She never really appreciated the depth and bitterness of the Irish conflict.

她從來沒有真正認識到愛爾蘭矛盾的深刻和激烈。

He appreciates that co-operation with the media is part of his professional duties.

他懂得與媒體合作是自己工作職責的一部分。

感謝;感激

Peter stood by me when I most needed it. I'll always appreciate that.

當我最需要的時候，彼得在我身邊支持我。我將永存感激。

Thanks, lads. I appreciate it.

謝了，哥們兒。我很感激。