正式的家庭房有壁炉和冠用砖成型。

Formal family room with brick fireplace and crown molding.

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正是这些产品破坏了我们的血管内皮细胞，这种状况会导致心脏病、突然死于心脏病发作、和冠动脉搭桥手术。

It is theseproducts that destroy the endothelial cells lining our blood vessels, whichleads to heart disease, sudden death from heart attacks, and coronary bypasssurgeries.

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研究者们还提出：“已有证据显示不但存在种间杂交（比如斑海豹与麻斑海豹），也存在属间杂交（比如格林兰海豹和冠海豹）。

The researchers further note: "There is evidence of hybridization across species (such as between spotted and harbor seals) as well as across genera (such as hard and hooded seals)."

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I think one of the biggest obstacles for Korean students in English is articles "a", "an" and "the".

我认为在英语方面对韩国学生来说最大的一个障碍就是冠词"a", "an" 和 "the"。

韩国人经常犯的失误 - SpeakingMax英语口语达人