Compounds in black tea can attack the bacteria that form plaque and prevent the plaque from sticking to teeth, U. S. researchers found.

美国的研究人员发现，红茶中的多种化合物可以杀灭导致牙菌斑的细菌，也可以防止牙菌斑粘附在牙齿上。

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The chemical structures that form the units of DNA and RNA and that encode genetic information i.e. the bases that make up the base-pairs are A, G, T, C and U (see DNA).

形成DNA、RNA单体以及编码遗传信息的化学结构，也就是组成碱基对的碱基包括A、G、T、C、U。

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William Gaunter, a former U. S. Navy medic, helped play-test the game. He supported the game in its original form but said he wasn't surprised by the backlash.

一位前美国海军医生William Gaunter曾帮助测试这款游戏，他支持游戏的原版，但是他说他对这样的强烈反对不感到惊奇。

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It comes at a pivotal point in U.S.-Iraqi relations, as both sides attempt to form a new working relationship.

VOA: standard.2009.07.28

But al-Shabab, which follows an ultra-conservative form of Islam, opposes the moderate version of Islamic law the president and his U.N.-supported government are likely to put in place.

VOA: standard.2009.04.17

Its three principal areas (spa, fitness and pool) form a U-shape surrounding an interior courtyard atrium.

FORBES: The Old South rises again at the Spa at Sea Island, Georgia.

In the U.S. his strategy is to form partnerships rather than compete head-on with U.S. carriers.

FORBES: Reverses

Federal form 1040NR-EZ, U.S. Income Tax Return for Certain Nonresident Aliens With No Dependents (downloads as a pdf).

FORBES: A Beginner's Guide To Taxes: Which Tax Form Should I File?