Whitening toothpastes will remove only surface stains, such as those caused by smoking, tea or coffee.

增白牙膏将可以去除牙齿表面色斑，比如由吸烟，喝茶或咖啡引起来的。

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Since porcelain is ceramic, and therefore glass-like, its surface is smooth and impervious and unlike older bonding materials, it will not be stained coffee, tea, red wine or cigarette smoking.

因为这种瓷料是陶瓷质地的，看起来像玻璃，与老式的物料不一样，其表面是光滑而且具有非渗透性，咖啡，茶叶红酒或是抽烟等都不会在其表面形成斑点。

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The tiny islands, crowned with little temples or tea houses, stick like baskets of flowers out of the silvery surface of the calm water.

小岛上坐落着小寺庙或者茶馆，好似平静的银色水面上的一篮篮鲜花。

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The controversy arose in early 2012, when reports began to surface that newly formed tea-party and other conservative groups that had applied for tax-exempt status were receiving letters from the IRS asking for disclosure of their donors and other information that typically isn't requested of groups making such applications.

WSJ: IRS Apologizes for Scrutiny of Conservative Groups

One day, they found an irregularly shaped stone, about the size of a tea tray, its upper surface pitted with small hemispherical holes.

NEWYORKER: The Sanctuary

Splits between newly elected Tea Party representatives and conservative establishment politicians will quickly surface in the House and Senate caucuses.

FORBES: Might Makes Right Win Over Voters