This is a compound-complex sentence.

这是一个并列关系的复句。

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Structurally, they are simple sentences, compound sentences, complex sentences and compound-complex sentences.

按照句子的内部结构进行分类时，可分为简单句、并列句、复合句和并列复合句。

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This extremely poisonous carbon compound happens to be very reactive, allowing it to lock in hugely complex but stable chains of other molecules.

这种剧毒的碳化合物碰巧是非常活泼的，这使得它能够锁定在非常复杂但是稳定的其他分子链中。

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Casio has redesigned the ClassPad series' software keyboard to make this new model easier to use, organizing functions to correspond to three levels of learning difficulty, beginning with basic functions used by everyone like fractions, square roots, and trigonometric functions, then advanced functions like differential calculus, complex compound numbers, and sigma calculations, and finally even more advanced calculations including piecewise and user-defined formulas.

ENGADGET: Casio's touchscreen graphing calculator arrives in 2013, makes the TI-84+ look dated

The sprawling Hill Country compound boasts five dwellings including a 9, 950-square foot main house, multiple garages, a mega indoor sports complex, a plethora of outdoor sports courts, skeet shooting, an archery area, and a seven-acre pond stocked with fish.

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