这个神秘的男人在被他的狗包围着的时候，感到最孤独。

This inscrutable man never felt more alone than when surrounded by his dogs.

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天文学家长期认为黑洞应该是由一环尘埃和气体包围着的。

Astronomers have long thought that a black hole ought to be surrounded by a torus of dust and gas.

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它被包围着的颅骨和三层坚韧的细胞膜被称作脑（脊）膜保护着。

This is provided by the surrounding skull and three tough membranes called meninges.

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The potential danger besetting the Lady is certainly a subject of some concern for her dutiful brothers.

包围着这位女士的潜在危险，当然是,一个思考他那顺从的兄弟的话题。

耶鲁公开课 - 弥尔顿课程节选

Here's the editor, great editor of the publisher Faber & Faber, thirty years later, or more, surrounded by books, ; the cultural arbiter of the English speaking world; T.S. Eliot at sixty.

0年后，这就是费伯-费伯出版社的大编辑，被成堆的书籍包围着，被视为英语语言世界的文化标尺;,这就是60岁的艾略特。

耶鲁公开课 - 现代诗歌课程节选